This document discusses the fungus Aspergillus. It begins with an overview of Aspergillus and how some species can cause food spoilage or intoxication. It then discusses how Aspergillus is an important genus of molds found worldwide. While most people are naturally immune, some Aspergillus species can cause infectious diseases in humans like aspergillosis, an infection of the lungs. The document concludes that Aspergillus has both harmful and beneficial roles as some species produce toxins while others secrete industrially useful enzymes.
ARSHI GOYAL, Lecturer at Maharani kishori memorial college,Hodal (M.K.M)
Overview on Foot and MOUTH,COCCIDIOSIS Disease.
FOOT and MOUTH-
Introduction,Symptoms,Cause,Transmission,Prevention,Vaccination.
COCCIDIOSIS-
Introduction,genera and species that cause coccidiosis, coccidia in chickens,dogs,cattles and humans.
ARSHI GOYAL, Lecturer at Maharani kishori memorial college,Hodal (M.K.M)
Overview on Foot and MOUTH,COCCIDIOSIS Disease.
FOOT and MOUTH-
Introduction,Symptoms,Cause,Transmission,Prevention,Vaccination.
COCCIDIOSIS-
Introduction,genera and species that cause coccidiosis, coccidia in chickens,dogs,cattles and humans.
There are four main types of disease affecting poultry: metabolic and nutritional diseases; infectious diseases; parasitic diseases; and behavioural diseases.
Metabolic and nutritional diseases
These are conditions caused by a disturbance of normal metabolic functions either through a genetic defect, inadequate or inappropriate nutrition or impaired nutrient utilisation. These include Fatty Liver Syndrome, Perosis (or slipped tendon), Rickets and Cage Layer Fatigue.
Infectious diseases
An infectious disease is any disease caused by invasion of a host by a pathogen which subsequently grows and multiplies in the body. Infectious diseases are often contagious, which means they can be spread directly or indirectly from one living thing to another. These include Avian Encephalomyelitis, Avian Influenza, Avian Tuberculosis, Chicken Anaemia Virus Infection (or CAV), Chlamydiosis, Egg Drop Syndrome (or EDS), Fowl Cholera (or Pasteurellosis), Fowl Pox, Infectious Bronchitis, Infectious Bursal Disease (or Gumboro), Infectious Coryza, Infectious Laryngotracheitis, Lymphoid Leukosis, Marek’s Disease, Mycoplasmosis, Necrotic Enteritis, Newcastle Disease and Salmonellosis.
Parasitic diseases
Parasitic diseases are infections or infestations with parasitic organisms. They are often contracted through contact with an intermediate vector, but may occur as the result of direct exposure. A parasite is an organism that lives in or on, and takes its nourishment from, another organism. A parasite cannot live independently. These include Coccidiosis, Cryptosporidiosis, Histomoniasis, Lice and Mites, Parasitic Worms (or Helminths), Toxoplasmosis and Trichomoniasis.
Behavioural diseases
Abnormal behavioural patterns can lead to injury or ill health of the abnormally behaving bird and/or its companions. These include Cannibalism (or aggressive pecking).
This color atlas of poultry diseases .This is very useful guide for poultry farmers & poultry practicing professionals.The atlas contains colour photographs demonstrating the overall pathology of birds. The book includes more than 50 diseases from avian infectious pathology and a similar number from non-infectious pathology.There are both classic and well known diseases and new and little known diseases. The book is designed for veterinarians, veterinary students, poultry farmers and poultry specialists.
To get more free guides and literature and books please visit www.growelagrovet.com
Calf Coccidiosis
General about coccidia- Structure- Life cycle- Environmental factors for survival
Eimeria in cattle- Prevalence- Clinical coccidiosis- Sub-clinical coccidiosis
Surveillance and control
What is Coccidiosis?
Enteric disease caused by the protozoan parasites Eimeria spp
E. coli diagnosis in broiler and layer bird.Abdullah Masud
Hi,this is Abdullah Al Masud's presentation.Microbiological and pathological characteristics of E. coli in birds has shown here. It was made as assignment on my masters work in microbiology.
Coccidiosis Powerpoint by Dr. Kushal GrakhKushal Grakh
Coccidiosis is an acute invasive disease.
Major constraints to livestock.
epidemiology, etiology, pathogenesis
diagnosis, prevention and control.
pictures to illustrate proper understanding and references for further studies.
Medically Important Aspergillus species.pptxNawangSherpa6
The Presentation here is about Medically important Aspergillus species. How does it infect the Human host? What are it's clinical manifestations and How can we diagnose for their infection and potential application for other studies.
There are four main types of disease affecting poultry: metabolic and nutritional diseases; infectious diseases; parasitic diseases; and behavioural diseases.
Metabolic and nutritional diseases
These are conditions caused by a disturbance of normal metabolic functions either through a genetic defect, inadequate or inappropriate nutrition or impaired nutrient utilisation. These include Fatty Liver Syndrome, Perosis (or slipped tendon), Rickets and Cage Layer Fatigue.
Infectious diseases
An infectious disease is any disease caused by invasion of a host by a pathogen which subsequently grows and multiplies in the body. Infectious diseases are often contagious, which means they can be spread directly or indirectly from one living thing to another. These include Avian Encephalomyelitis, Avian Influenza, Avian Tuberculosis, Chicken Anaemia Virus Infection (or CAV), Chlamydiosis, Egg Drop Syndrome (or EDS), Fowl Cholera (or Pasteurellosis), Fowl Pox, Infectious Bronchitis, Infectious Bursal Disease (or Gumboro), Infectious Coryza, Infectious Laryngotracheitis, Lymphoid Leukosis, Marek’s Disease, Mycoplasmosis, Necrotic Enteritis, Newcastle Disease and Salmonellosis.
Parasitic diseases
Parasitic diseases are infections or infestations with parasitic organisms. They are often contracted through contact with an intermediate vector, but may occur as the result of direct exposure. A parasite is an organism that lives in or on, and takes its nourishment from, another organism. A parasite cannot live independently. These include Coccidiosis, Cryptosporidiosis, Histomoniasis, Lice and Mites, Parasitic Worms (or Helminths), Toxoplasmosis and Trichomoniasis.
Behavioural diseases
Abnormal behavioural patterns can lead to injury or ill health of the abnormally behaving bird and/or its companions. These include Cannibalism (or aggressive pecking).
This color atlas of poultry diseases .This is very useful guide for poultry farmers & poultry practicing professionals.The atlas contains colour photographs demonstrating the overall pathology of birds. The book includes more than 50 diseases from avian infectious pathology and a similar number from non-infectious pathology.There are both classic and well known diseases and new and little known diseases. The book is designed for veterinarians, veterinary students, poultry farmers and poultry specialists.
To get more free guides and literature and books please visit www.growelagrovet.com
Calf Coccidiosis
General about coccidia- Structure- Life cycle- Environmental factors for survival
Eimeria in cattle- Prevalence- Clinical coccidiosis- Sub-clinical coccidiosis
Surveillance and control
What is Coccidiosis?
Enteric disease caused by the protozoan parasites Eimeria spp
E. coli diagnosis in broiler and layer bird.Abdullah Masud
Hi,this is Abdullah Al Masud's presentation.Microbiological and pathological characteristics of E. coli in birds has shown here. It was made as assignment on my masters work in microbiology.
Coccidiosis Powerpoint by Dr. Kushal GrakhKushal Grakh
Coccidiosis is an acute invasive disease.
Major constraints to livestock.
epidemiology, etiology, pathogenesis
diagnosis, prevention and control.
pictures to illustrate proper understanding and references for further studies.
Medically Important Aspergillus species.pptxNawangSherpa6
The Presentation here is about Medically important Aspergillus species. How does it infect the Human host? What are it's clinical manifestations and How can we diagnose for their infection and potential application for other studies.
Opportunistic Mycosis are: caused by fungi that cannot infect healthy humans but can
cause serious often fatal mycoses in people whose resistance has been lowered (immunocompromised patients).
Many fungi previously considered non- pathogenic are
now recognized as etiological agents of the
opportunistic fungal infections.
The laboratory must identify and report completely
the presence of all fungi recovered from
immunocompromised patient, since every organism is
a potential pathogen
The highly susceptible groups for opportunistic fungal
infection are
- AIDs patients,
-Leukemic patients,
-individuals on chemotherapy for treatment of cancer,
-alcoholics. The commonest causes of opportunistic mycosis are:
-Candidiasis
- Aspergillosis
- Zygomycosis
-Cryptococosis
-Pneumocystis carn
Candidiasis is a relatively common human infection that can
take form of;
superficial,
mucocutanous or
systemic disease.
Principally it is caused by the three species of the genus candida,
namely,
C.albicans,
C.tropicalis and
C.krusei
Superficial and mucocutaneous candidiasis
It is superficial infections of skin and mucous membranes
Through, oral and vaginal candidiasis
- Oesophageal candidiasis
-Skin lesions of folds, groin, axilla, and interdigital areas
- Napkin eruptions in infants
- Paranychial candidiaiasis
Invasive:
Candidemia: initial stage can be transient if phagocytic
system is intact.
Disseminated or hematogenous candidiasis if phagocytic
system is compromised.
Multi organs can be involved with infection: kidney,
prosthetic heart valves, brain, eye, meninges.
Mortality: 30-40%
Predisposing factors
Diabetes
Immunosupperession
T-cell immunodeficiency disorders
Acquired- immunodeficiency syndrome, (AIDS)
Leukaemias, Lymphomas
Steroid treatments
Broad spectrum antibiotics
Laboratory diagnosis
Superficial or mucocutaneous candidiasis is diagnosed by
finding the fungus in tissue scraping and culture
Systemic candidiasis is difficult to diagnose.
Definitive diagnosis is made by the histopathologic
demonstration of the invasion of tissue by the yeast.
Specimens from surface lesions, mouth, vaginal, sputum,
exudates etc are examined using different methods.
Direct examination
a) KOH
Exposed lesions can usually be easily diagnosed by
clinical appearance together with finding typical budding
yeast cells and pseudohyphae and /or true hyphea in lesion
scrapings treated with KOH.
b) Gram-stain
Gram stain smears show large gram-positive budding yeast cells
with pseudohyphea.
Germ tube test
Candida albicans can be presumptively identified based
on the production of a germ tube
Principle
When incubated with serum at 370C for 1 to 3 hours,
C.albicans will form a germ tube.
Procedure
1. Pipette 0.5 ml of serum into a test tube
2. Inoculate the tube with a small amount of the
organism to be
tested.
ASPERGILLOSIS, MUCORMYCOSIS AND HISTOPLASMOSIS.pptxMkindi Mkindi
There are nearly 100 viruses of the herpes group that infect many different animal species.
Official name of herpesviruses that commonly infect human is Humans herpesvirus (HHV)
herpes simplex virus types 1 (HHV 1)
Herpes simplex virus type 2 (HHV 2)
Varicella-zoster virus (HHV 3)
Epstein-Barr virus, (HHV 4)
Cytomegalovirus (HHV 5)
Human herpesvirus 6 (HHV 6)
Human herpesvirus 7 (HHV 7)
Human herpesvirus 8 (HHV 8) (Kaposi's sarcoma-associated herpesvirus).
Herpes B virus of monkeys can also infect humans
hELMINTHS#corona virus#Aspergillosis#BUGANDO#CUHAS#CUHAS#CUHAS
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
The increased availability of biomedical data, particularly in the public domain, offers the opportunity to better understand human health and to develop effective therapeutics for a wide range of unmet medical needs. However, data scientists remain stymied by the fact that data remain hard to find and to productively reuse because data and their metadata i) are wholly inaccessible, ii) are in non-standard or incompatible representations, iii) do not conform to community standards, and iv) have unclear or highly restricted terms and conditions that preclude legitimate reuse. These limitations require a rethink on data can be made machine and AI-ready - the key motivation behind the FAIR Guiding Principles. Concurrently, while recent efforts have explored the use of deep learning to fuse disparate data into predictive models for a wide range of biomedical applications, these models often fail even when the correct answer is already known, and fail to explain individual predictions in terms that data scientists can appreciate. These limitations suggest that new methods to produce practical artificial intelligence are still needed.
In this talk, I will discuss our work in (1) building an integrative knowledge infrastructure to prepare FAIR and "AI-ready" data and services along with (2) neurosymbolic AI methods to improve the quality of predictions and to generate plausible explanations. Attention is given to standards, platforms, and methods to wrangle knowledge into simple, but effective semantic and latent representations, and to make these available into standards-compliant and discoverable interfaces that can be used in model building, validation, and explanation. Our work, and those of others in the field, creates a baseline for building trustworthy and easy to deploy AI models in biomedicine.
Bio
Dr. Michel Dumontier is the Distinguished Professor of Data Science at Maastricht University, founder and executive director of the Institute of Data Science, and co-founder of the FAIR (Findable, Accessible, Interoperable and Reusable) data principles. His research explores socio-technological approaches for responsible discovery science, which includes collaborative multi-modal knowledge graphs, privacy-preserving distributed data mining, and AI methods for drug discovery and personalized medicine. His work is supported through the Dutch National Research Agenda, the Netherlands Organisation for Scientific Research, Horizon Europe, the European Open Science Cloud, the US National Institutes of Health, and a Marie-Curie Innovative Training Network. He is the editor-in-chief for the journal Data Science and is internationally recognized for his contributions in bioinformatics, biomedical informatics, and semantic technologies including ontologies and linked data.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
4. Food Spoilage And Intoxication
Food Spoilage – Spoilage is the process in
which food deteriorates to the point in which it
is not edible to humans or its quality of edibility
becomes reduced.
Food Intoxication- It is the process of injection
or consumption of food which is already been
infected by toxins and other microorganism
v
5. What is FUNGI ??
A fungi is part of group of eukaryotic organisms
that includes unicellular microorganism such as
yeast and molds as well as multi cellular familiar
organisms such as mushrooms
These organisms has its own separate kingdom,
“FUNGI” due to its distinctive characteristics which
separate from other eukaryotic life kingdoms
such as Plants and Animals.
Common Fungi are Pink Waxcap, Coral Tooth,
Pig’s ear
Fungi can be useful or infectious as it can be
responsible for food intoxication or food
production
v
7. History
Aspergillus was first catalogued in 1729 by Italian
Priest and Biologist Pier Antonio Micheli
Micheli was reminded of the shape of an
aspergillum (holy water sprinkler), from Latin
spargere (to sprinkle), and named the genus
accordingly
The first known case of infection was in a jackdaw in
1815 and in a human in 1842.
In the 19th century it was an occupational hazard
amongst wig combers when it caused allergic disease
of the lungs.
a
9. What is Aspergillus ?
It is a genus of around 200 fungi (moulds)
found worldwide
Only a few of these moulds can cause illness
in humans and animals. Most people are
naturally immune and do not develop disease
caused by Aspergillus. However, when
disease does occur, it takes several forms.
a
11. Some Scientific Stuff…
Kingdom : Fungi
Division : Ascomycota
Class : Eurotiomycetes
Order : Eurotiales
Family : Trichocomaceae
Genus : Aspergillus
a
12. Growth and Distribution
Aspergillus is found mainly in asexual state but
some of them are known to have sexual state
Members of this genus has ability to grow in
high osmotic condition(like high sugar and
salt)
These species are highly aerobic and found
easily in high oxygen conditions
Apart from it they are able to grow in nutrient-
depleted conditions example aspergillus niger
a
14. Why is Aspergillus important ?
The following slide will throw light on positive
and negative aspects of the fungi (aspergillus)
- Some aspergillus are harmful for living beings
and produce MYCOTOXINS
- Some are good as they produce industrially
beneficial enzymes
- Some can act as harmful pathogens causing
infectious diseases to humans and animals
- v
15. Where is aspergillus found ?
Its natural habitat is hay and compost
These are daily born and we breathe in about
100-200 spores daily
Some species withstand heat example-
Aspergillus fumigatus (pathogenic type) these
are commonly found in compost.
v
16. Common availability
Soil
Air; spores may be inhaled
Water / storage tanks in hospitals etc
Food
Compost and decaying vegetation
Fire proofing materials
Bedding, pillows
Ventilation and air conditioning systems
Computer fans
v
18. Which species of aspergillus are
pathogens ?
The most common causing invasive disease
are Aspergillus fumigatus and Aspergillus
flavus.
The most common causing allergic disease
are Aspergillus fumigatus and Aspergillus
clavatus.
Image of aspergillus calvatus -
a
20. Aspergillosis
Aspergillosis is a group of diseases caused by
Aspergillus. The symptoms – fever, a cough, chest pain
or breathlessness occur in many other illnesses so
diagnosis can be hard. Usually only patients with
already weakened immune systems or who suffer other
lung conditions are susceptible.
In man the major forms of disease are:
1. Allergic aspergillosis (affects asthma, cystic fibrosis and
sinusitis patients).
2 . Acute invasive aspergillosis (risk increases if patient has
weakened immunity such as some cancer patients and those
on chemotherapy).
3. Disseminated invasive aspergillosis (widespread through
body).
a
22. The Symptoms
A fungus ball in the lungs may cause no symptoms and may
be discovered only with a chest X-ray, or it may cause
repeated coughing up of blood, chest pain, and occasionally
severe, even fatal, bleeding. A rapidly
invasive Aspergillus infection in the lungs often causes cough,
fever, chest pain, and difficulty breathing.
Poorly controlled aspergillosis can disseminate through the
blood stream to cause widespread organ damage. Symptoms
include fever, chills, shock, delirium, seizures and blood clots.
The person may develop kidney failure, liver
failure (causing jaundice), and breathing difficulties. Death
can occur quickly.
Aspergillosis of the ear canal causes itching and occasionally
pain. Fluid draining overnight from the ear may leave a stain
on the pillow. Aspergillosis of the sinuses causes a feeling of
congestion and sometimes pain or discharge.
s
23. Diagnosis
Imaging test. A chest X-ray or computerized tomography (CT) scan — a type of X-
ray that produces more-detailed images than conventional X-rays do — can
usually reveal a fungal mass (aspergilloma), as well as characteristic signs of
invasive and allergic bronchopulmonary aspergillosis.
Respiratory secretion (sputum) test. In this test, a sample of your sputum is
stained with a dye and checked for the presence of aspergillus filaments. The
specimen is then placed in a culture that encourages the mold to grow to help
confirm the diagnosis.
Tissue and blood tests Skin, sputum and blood tests may be helpful in confirming
allergic bronchopulmonary aspergillosis. For the skin test, a small amount of
aspergillus antigen is injected into the skin of your forearm. If your blood has
antibodies to the mold, you'll develop a hard, red bump at the injection site.
Blood tests look for high levels of certain antibodies, indicating an allergic
response.
Biopsy: In some cases, examining a sample of tissue from your lungs or sinuses
under a microscope may be necessary to confirm a diagnosis of invasive
aspergillosis.
24. The Treatment
The current medical treatments for aggressive invasive
Aspergillosis include voriconazole and liposomal
amphotericin B in combination with surgical debridement.
For the less aggressive allergic bronchopulmonary
aspergillosis findings suggest the use of oral steroids for a
prolonged period of time, preferably for 6–9 months in allergic
aspergillosis of the lungs. Itraconazole is given with the
steroids, as it is considered to have a "steroid sparing" effect,
causing the steroids to be more effective, allowing a lower
dose.
Other drugs used, such as amphotericin B, caspofungin (in
combination therapy only), flucytosine (in combination
therapy only), or itraconazole, are used to treat this fungal
infection
s
25. Aspergillus as a pathogen
in animals
All domestic mammals, birds and numerous
wild species can get aspergillosis.
Birds such as penguins and falcons when
stressed by malnutrition or capture are particularly
susceptible to aspergillosis.
Spores of Aspergillus fumigatus cause lung
infections – leading to death.
Aspergillus fumigatus spores are often present on
the surface of eggs after laying. The spores may
penetrate the shell pores and contaminate newly
hatched chicks.
s
27. Aspergillus species secrete a number
of enzymes with important industrial
uses –
Genetically modified A. oryzae is used for the
large scale production of lipases used in
biological washing powders.
A.niger is used in the commercial production
of citric acid, which is widely used in the food
industry
Fermentation of genetically modified
A.oryzae is the major source of recombinant
chymogen which is used to curdle milk to
make hard cheeses
s
28. Aspergillus Mycotoxins
Mycotoxins are chemical products of fungi that have the
capacity to damage animal health and contaminate
crops.
Repeated aflatoxin ingestion in man has been linked to
liver cancer.
Mycotoxins (aflatoxins) produced by Aspergillus
parasiticus and A. flavus are commonly found to
contaminate corn, peanuts, and other crops used for
animal feedstuff. High temperature and humidity
increase chances of contamination.
Turkey ‘X’ syndrome - in 1960, 100,000 turkeys died in
the South of England, from liver damage after
consumption of peanuts contaminated with A. flavus.
30. Aspergillus is a remarkable member of the
fungal kingdom, with a wide diversity of
uses and effects on mankind
In the environment it plays a role in both the Carbon and
Nitrogen cycles and in the breakdown of organic
material into compost
It is a pathogen and allergen in humans and animals
Aspergillus nidulans has played a crucial role as a
genetic model including identifying the genes
responsible for alkaptonuria
The biotechnology industry has harnessed it’s potentially
useful enzymes for the food industry and commercial
uses
a