Marine algae are a rich source of natural bioactive compounds with pharmaceutical, nutraceutical and cosmetic applications. Multi-omics approaches can be used to identify compounds of interest from algae. Notable compounds isolated from algae include carotenoids, fatty acids, antibiotics, and biosurfactants. Algae also have applications as human and animal food, in space research producing oxygen, and in energy production through biofuel and methane. Microalgae can be used to remediate wastewater by removing nutrients and excess carbon dioxide.

2. BIO-PROSPECTING OF MARINE
ALGAL NATURAL PRODUCTS AND
THEIR BENEFITS

3. Need for Marine Bio-prospecting
Repeated search in terrestrials leading to known compounds
Marine ecosystems are unique and rich reservoir of biodiversity with an
enormous potential towards improving the quality of human life.
Marine organisms have highly developed defense system in order to survive
in the hostile conditions such as extreme temperatures, varied pressures
(low or high), low energy and lack of sunlight

4. Multi-OMICS methodologies: Genomics, Transcriptomics, Proteomics,
Metabolomics, Metagenomics and Meta transcriptomics
Production and analysis of massive biological data
Once, the compound of interest is identified, bioactivity screening,
heterologous expression, genetic engineering and/or chemical synthesis can
follow
Characterize the activity and produce the desired bioproducts with
pharmaceutical, nutraceutical, cosmeceutical and biofuel production
applications.

5. ALGAE IN THE WORLD
Sea, rivers and lakes, on soil and walls, in animal and plants
Symbiosis with plants, animals, bacteria and Marine organisms
Macro algae (seaweeds) occupy the littoral zone, which included green,
brown and red algae
Micro algae are found in both benthic and littoral habitats and also
throughout the ocean waters as called phytoplankton

6. MICRO ALGAE
Microscopic photosynthetic organism called phytoplankton found in
fresh and marine waters , plays a key role in food chain
Similar photosynthetic mechanism as like plants & they utilize
sunlight, atmospheric CO2 and nutrients in the water to produce
biomass
Classification based on morphology, pigmentation, chemical nature of
photosynthetic product & organization of photosynthetic membranes
Diatoms (bacillariophyta), dinoflagellates (dinophyta), green and
yellow–brown flagellates (chlorophyta; prasinophyta;
prymnesiophyta, cryptophyta, chrysophyta and rhaphidiophyta) and
blue–green algae (cyanophyta).

7. MICRO ALGAL COMPOUNDS & ITS BENEFITS

8. PHARMACEUTICAL & COSMETIC APPLICATIONS
Carotenoids and Pigments
Powerful antioxidants, nutraceuticals use in Eye applications
Preventing Cancer , Immunostimulant & veterinary use (Aquaculture use) & cosmetics
Commercially available
Dunaliella salina

9. Astaxanthin
Isolated from Micro algae
Powerful antioxidants in aquaculture
Fucoxanthin
Promote DHA & omega-3 fatty acids
Beta carotenoid
Found in many algae
Colored carotenoids
Dunaliella salina
Phytoene
Phytofluene
Lutein
Zeaxanthin

10. ANTIBACTERIAL COMPOUNDS
C-lactone malyngolide
(Lyngbya majuscula)
ANTIFUNGAL COMPOUNDS
Majusculamide (cyclic depsipeptide)
Gambieric acid
(Gambierdiscus toxicus –Dinoflagellate)
IMMUNOSUPPRESSIVE COMPOUNDS
Lipoproteins, microcolins A and B
ANTICANCER COMPOUNDS
Curacin A – anticancer (antimitotic agent)
Cytotoxic pentapeptides:
majusculamide D
Deoxy majusuculamide D
Amphi dinolide B
(dinoflagellate, Amphidinum sp.)
ANTIMICROBIAL & ANTICANCER COMPOUNDS

11. FATTY ACIDS AND HIGH VALUE OILS
Very Long chain PUFA (vlc PUFA)
Eicosapentaenoic (EPA)
Docosahexaenoic acid (DHA)
Arachidonic acid (AA)
Flexibility, fluidity and selective permeability
to cellular membranes
Brian development
Beneficial for the cardiovascular system
Nutraceutical in human and animal health

13. Antibiotics (fatty acids, bromophenols, tannins, terpenoids & polysaccharides)
Phyco biliproteins (Phycocyanin & phycoerythrin)–Natural dye for cosmetics
(lipsticks & eyeliners)
Algicides –toxin (neurotoxic and hepatotoxic)
Vitamin and vitamin precursors (ascorbic acid, riboflavin and tocopherol)
Chlorella and Spirulina are used in skin care, sun protection and hair care
products

14. ALGAL SMALL MOLECULES
Group of secondary metabolites synthesized by biosynthetic gene clusters
(Enzyme systems producing products such as antibiotics)
Cyclic peptide (microcystin), depsipeptide ( majusculamide)
Lyngbyatoxin-A ( Lyngbya majuscule) – antifungal activity
Cryptophycin from Nostoc sp. shows a fungicidal activity &microtubule
depolymerizing agent for Cancer cells.
Heterocyclic compounds, polycyclic ethers, oxygenated polyketides and
macrolides from dinoflagellates
Dinoflagellate toxins like saxitoxin , neosaxitoxin and gonyautoxins are sodium
channel blockers

15. ALGAL BIOSURFACTANTS
Extracellular Amphiphilic compounds
Glycolipids, lipopeptides, fatty acids, polymeric surfactants & particulate
natures
Broad range of applications
Antibacterial, antiviral, antifungal, anti-adhesive, anti-cancer, antioxidants,
adjuvant etc
Arthrospira sp., Synechococcus nidulans, Chlorella minutissima, C. vulgaris and
C. homosphaera used for various industrial and pharmaceutical applications

16. ALGAL BIO POLYMERS AND BIOPLASTICS
Typically, long chain polymers, present in the algae lipids are used for making
bioplastics
Algae is attractive for bioplastics because of its high growth rate and high protein
content.
The plastics market is worth more than $400 billion and has grown at an average of
3.5% per year over the last two decades.
Naturally occurring polymer have many applications in medical, pharmaceutical and
food industries
Biodegradable Poly hydroxy alkanoates (PHA) are promising biopolymer which can be
alternative to petroleum based polymer
PHB poly-(hydroxy butyrate) is the most abundant PHA which is homopolymer of
hydroxybutyrate that presents in various cyanobacteria such as Chlorogloea fritschii,
Spirulina sp., Aphanothece sp. & Gloeothece sp.

17. MICRO ALGAE AS FOOD
Human Food – Good Nutraceuticals
High protein content
Chlorella and Spirulina, Dunaliella, Haematococcus, Schizochytrium, Scenedesmus,
Aphanizomenon, Odontella, and Porphyridium are health-food
Chlorella, the prevention and treatment of heart diseases with the Spirulina, Vitamin A
precursor (Dunaliella), anti-inflammatory (Haematococcus), treatment of brain and
heart disorders (Schizo chytrium),
Dunaliella bardawil could improve the drug’s effect on HDL-cholesterol levels in
patients
30 % of the food in Astronauts is algae due to high protein

18. Microalgae as animal feed
Traditional uses of microalgae in Aquaculture
Food for
All growth stages of bivalves
Crustacean
some larval stages
Cattles
Some fish larvae
Zooplankton
used as food for
larval crustaceans
and fish
Fatty acid enrichment of zooplankton
Dunaliella sp.
Chlorella sp.
Nanochloropsis sp.

19. MICRO ALGAE IN SPACE RESEARCH
Algae produce oxygen in space
Chlorella and Euglena grown in
photobioreactor is used to produce oxygen
in the space for the Astronauts using their
waste and help them for long term
expedition in space
NASA and many other space research
station in the world open opportunities for
planktologist

20. ENERGY PRODUCTION
Bio-hydrogen production
Photosynthetic microorganisms are attracting
nowadays by high photosynthetic conversion
efficiencies diverse metabolic capabilities, superior
growth rates, and ability to store or secrete energy-
rich hydrocarbons.
Two methods; (1) microalgae use the light energy
to produce hydrogen from water, (2) bacteria capable
of fermenting the carbohydrates (either structural or
stored in the microalgal cell wall) are utilized
to produce hydrogen.
Manipulation of competing metabolic pathways by
modulating the certain key enzymes such as
hydrogenase and nitrogenase may enhance the
evolution of H2 from photoautotrophic cells
Several photobioreactors have been developed for
large-scale biomass and hydrogen production

21. Algal Methane Production
In a biogas reactor the substrates used are converted in several reaction
steps into biogas, consisting mainly of the components CH4 and CO2
The biogas yield of plants is generally limited by the greater or lesser
proportion of lignocellulose, which is difficult to recycle.
However, the use of microalgae with a low lignocellulose content, for
example Chlorella vulgaris, Phaeodactylum tricornutum and Spirulina
platensis, permits an almost complete utilization of the organic substance.
.

22. ALGAL OIL PRODUCTION
Storing the Sun’s Energy
(Photosynthesis)
What is needed Storage of Energy
Sunlight Lipids and oils
CO2 Carbohydrates
Nutrients

23. How to produce more oils ?
The lipid content of an algae species can be increased by imposing a stress
factor, such as starving of nitrogen or silicon.
In this manner, lipid fractions up to 70-85% have been reported for nitrogen
starvation and 60% for silicon starvation

24. Algal Cell Harvest
Centrifugation- small microalgae
Filtration- different size of algae
Flocculation- Change of pH
Acid flocculation – using alum and sulphuric
acid
Alkali flocculation – using NaOH and KOH
Autoflocculation – Interrupting the CO2 level

25. Algal Oil Extraction
Mechanical methods: Expeller press, with vegetable oils, with chemical
solvents
Osmotic methods: Sudden reduction in osmotic pressure
Ultrasonic assisted extraction: ultrasonic reactor, ultrasonic waves crate
the rupture of cell walls
Sonoenzymatic treatment: Accelerates extraction and increases yields
Chemical methods: Algal powders + organic solvents (1:2)
Supercritical fluid extraction: liquid CO2 With different pressure
Enzymatic extraction: Enzymes to degrade the cell walls

26. Transesterification
A reaction between an ester of one
alcohol and a second alcohol to
form an ester of the second alcohol
and an alcohol from the original
ester, as that of methyl acetate and
ethyl alcohol to form ethyl acetate
and methyl alcohol
Methods for produce biodiesel

27. Advantages
Rapid and faster growth rates than terrestrial crops
The per unit area yield of oil from algae is estimated to be from between
5,000 to 20,000 gallons (18,927 to 75,708 litres) per acre, per year; this is 7 to
31 times greater than the next best crop, palm oil (635 gallons or 2,404 litres)
Certain species of algae can be harvested daily
Algal biofuel contains no sulphur, non-toxic and highly bio-degradable

29. Effluent Remediation
Phycoremediation
Effectively remove ammonia (75 %) ; Nitrite (84 %) ;
Phosphorus (89)
Removal of nutrients
Remove excess nutients and CO2 in waste water
systems
Solve BOD problems
Excess algal biomass may harvested
Removal of organic pollutants
Chlorella, ankistrodesmus in paper mills & olive oil
mills
Algae can produce O2 to bacteria and bacteria
degrade the nutrients
Diatomite- silicon compound for chelating
PHYCOREMEDIATION

30. ALGAL ASSOCIATED MICROBES AND ITS IMPORTANCE
The symbiotic relationship helps to enhancing the efficiency of micro
algal biomass and production of valuable organic compounds
Enhancement in the intracellular levels of carbohydrates, lipids and
pigments in microalgae (Emiliania huxleyi & Scrippsiella trochoidea)
Interactions can be beneficial to the massive production of microalgae
and algal products.

31. TRANSGENIC ALGAE
Possibility of manipulating genes is an attractive opportunity, and could lead to
leaps forward in reducing costs and improving production efficiency
Recombinant DNA technology and recently the gene editing approach, CRISPR
etc
The engineered microalgae can be modified to enhance growth properties,
photosynthetic efficiency or enhanced production of metabolites
Recombinant products including vaccines, oils, novel carotenoids, antibodies,
insecticidal proteins and biohydrogen etc

32. MACRO ALGAE (SEAWEEDS)
Seaweeds belong to the lower plants, do not have roots, stems and leaves.
Instead they are composed of a thallus (leaf-like) and sometimes a stem
and a foot and some species have gas-filled structures to provide buoyancy.
They are subdivided in three groups, the red (Rhodophyta), green
(Chlorophyta) and brown (Phaeophyceae) seaweeds
Top cultivators: China, France, UK, Japan, Chile, North Korea, Philippines,
Norway and Indonesia etc.

33. HIGH VALUE ADDED PRODUCTS
Bio molecules
Iodine
Algin
Mannitol
Glycerol & Proline
Polymers
Phyto colloids (Alginate, agar, carragennan etc)
Hydrocolloids
Thickening, Emulsify & stabilizers
Also a polymer D-mannuronic & l-guluronic acid
Laminaria, Ascophyllum & Macrrocystis

34. Alginate
Polyuronic saccharaide, inhibit Virus
Laminaria and Fucus
D- mannuronic and L-galuronic acid
Emulsifier in food industries
Fresh seaweed washed & Dried
Pulverize to get powder
Treat with 1N HCl (pH 2-3)-ON
Wash with water & add Na2Co3
Filter & bleach with 2.5 % NaClo
Evaporate @ 60° C
Pure sodium alginate

35. Carrageenan
Isolated from sea weeds
Sulfated polysaccharides
Powerful antioxidants
Broad range of applications in food
and cosmetics

36. Fucoidon (Foo–Koy–Den)
Sulfonated polysaccharides
Antioxidants & immunostimulants
Brown sea weeds
Blood purifier
Reduced Cholesterol
Fight off viral infections
Scavenge free radicals
Liver tonic
Anticancer

37. Ulvan
Composed of rhamnose, glucuronic acid,
iduronic acid, xylose and sulfate
Green seaweed, Ulva and Enteromorpha
Good gelling agent
Prevent biofilm formation
Good Nutraceuticals
Antioxidants
Anti-thrombotic activities
Treatment of gastric ulcers
Anticancer
Immunostimulants

38. Laminarian
Water-soluble polysaccharide
(1,3)-β-D-glucan with β (1,6) branching
and contains 20–25 glucose units
Regulator of intestinal metabolism
Tumor-inhibiting agent
Antibacterial agent
Protection against severe irradiation
Boosting the immune system
Reducing cholesterol levels in serum

39. Cadalmin Green Algal extract
Cadalmin Green Algal extract contains a unique
blend of 100% natural marine bioactive anti-
inflammatory ingredients extracted from selected
seaweeds or marine macro algae with a patented
ecofriendly “green” technology .
The product is effective to combat arthritic pain and
inflammatory diseases in human beings
Patients suffering with chronic joint pain and
arthritis clinical trial-based studies revealed that
more than 98% of the respondents were satisfied
with the product with about 70-85% relief in joint
pain and arthritis

40. PHARMACEUTICAL & COSMETIC APPLICATIONS
Bioactivity Seaweeds Compounds
Antioxidant Cymopolia barbata Cymopol
Avrainvillea longicaulis Avrainvilleol
Halimeda opuntia Polyphenols
Undaria pinnatifida Fucoxanthin
Anti-inflammatory Laureafincia claviformis Pacifenol
Stypopodium flabelliforme Styfotriol
Undaria pinnatifida Fucoidon
Anticancer Gracilaria corticata Polysaccharides
Gracilaria tenuistipitata
Plocamium telfairiae
Capsosiphon fulvescens
Sargassum oligocystum

41. TOP TEN MEDICAL APPLICATIONS
Prevents chances of stroke: Bioactive peptides from
seaweeds possess quite the same properties as
many ACE inhibitor medications. Also helps to
reduce cardiac attacks and cerebral strokes.
Detoxifier: Alginic acid serves as a detoxifying agent
that binds up with the available toxins in the
bloodstream so that they are eliminated faster.
Remove Pb & Cd by pollution and smoking .
Rich in Vitamin B: Green seaweeds contain many
enzymes, amino acids, minerals and Vitamin B.
Chlorophyll helps to long term stamina and over
health.

42. Rich source of Iodine: Daily requirement ranged
between 100-200 mcg, seaweeds are right for your
health
Inflammatory diseases: Recovery people who are
suffering from cancer. Japanese consume seaweed
daily, as part of their regular diet, they are thought to
have a much lower rate of breast cancer.
Reproductive benefits: Rich in Manganese and
Vitamin B2 which contribute to sexual wellness, by
regulating the sexual hormones. Improves sperm
count & relive Pre Menstrual Syndrome and
menopausal symptoms. Helps to lengthening the
menstrual cycle, delaying menopause relieving
endometriosis as well as improving fertility.

43. Dental health: Preventing gingivitis & formation
of cavities enhance salivation and resists oral
tissue damage. Alginate used to make the molds
of false teeth, derives from the seaweed based
alginic acid.
Enhances skin quality: Antioxidants, vitamins and
minerals helps to relieving the aging of skin;
relieving dry skin and to straighten out wrinkles.
Energy Booster: Soups as tonics for curing hang
over, respiratory ailments, colds & fever.
Strengthen hair: Seaweed based shampoos helps
to stimulate the re-growth & quality of hairs

44. FOOD APPLICATIONS
Human Consumption
Seaweeds are utilized as food in China, Japan, Korea, Philippines,
and several other Asian countries as human food
They provide a large profile of natural vitamins, minerals, and
essential fatty acids for human health
Porphyra, Monostroma sp., Ulva sp., Laminaria sp., Undaria sp,
Hizikia fusiformis, Chondrus crispus, Caulerpa sp., Alaria
esculenta, Palmaria palmata, Callophyllis variegata, Gracilaria sp.
and Cladosiphon okamuranus

45. Sea Lettuces
Genus Ulva, a group of edible green algae that is widely distributed along the
coasts of the world's oceans.
Food source for humans in Scandinavia, Great Britain, Ireland, China,
and Japan
Used as salads and cooked in soups.
High in protein, soluble dietary fiber, vitamins and minerals, especially iron.

46. Animal Consumption
Seaweeds are grazed by sheep, horses, Pig, cattle, and a nutritive
feed for fish and shrimps
Also a good food for Cats, dogs, aquarium fish, ornamental birds,
poultry and breeding bulls
Ulva sp., Porphyra sp., Palmaria palmata, Gracilaria sp., and Alaria
esculenta are used as animal feed
Hypnea cervicornis and Cryptonemia crenulata rich in protein used
for shrimp diets

47. FERTILIZER
Broad spectrum fertilizer that is rich
in beneficial trace minerals and hormones that
stimulate plant growth
High carbohydrates which are essential
building blocks in growing plants, and low in
cellulose so it breaks down readily
Trace elements found in organic seaweed
fertilizers include magnesium, potassium, zinc,
iron and nitrogen—all of which are beneficial to
plants
Ecklonia
Ascophyllum – Agri & Horticulture purposes

48. Bioremediation
Removal of heavy metals
Sargassum sp special affinity to heavy metals
S. vulgare, S. fluitans and S. filipendula , S. crassifolium
Effectively uptake Cd & Cu etc
Binding capacity due to alginic acid, with carboxyl groups and sulfated
polysaccharides, as well as sulfonic acid
Seaweed generates O2 which benefits hypoxic dead zones. Nutrients such as
ammonia, ammonium nitrate, nitrite, phosphate, iron, copper, as well as
CO2 are rapidly consumed by growing seaweed.

49. Algal Identification
Algal associated microbes
Carotenoid production
Algal oil production
Algal secondary metabolites
Aquaculture live feeds
Other compounds
Research Training @ CMST

50. Aquaculture companies
Amalgam Enterprises
Arbee Agencies
Arianee Landscapes
Avanti Feeds Ltd
Bright and Associates
Castlerock Group Of Companies
CIBA
Chirag International
Cochin Frozen Food Exports Ltd
Geo Seafood
Guybro Chemicals
L G Sea Foods
Carotenoid Companies
Allied Biotech Corporation
Carotenoid Technologies
Sociedad Anonima
Novepha Company
Agro Bio Chem (India) Pvt Ltd
Yunnan Green A Boiolgical Company
Algart International Inc.
Proalgen Biotech Ltd, Chennai
MNC Globle
Divis Laboratories Ltd
Agro BioChem (India) Pvt Ltd
BOBO Corp
Hovid Bhd
Global Opportunities

51. Job Opportunities in Algal Industry
Shrimp farm and Hatcheries
Algal oil industries
Carotenoids industries
DHA Production industries
Space research
Health product industries
Cosmetic industries
Biofertilizer industries

52. Algal oil producing companies
Aquaflow Binomic Corporation (ABC)
Aquatic energy
Circle Biodiesel and Ethanol Corporation
Amalgam Enterprises
Green Star Products Inc., (GSPI)
Inventure Chemicals
LiveFuels OriginOil, Inc.,
PetroAlgae
Solazyme, Inc.,
Solix Biofuels
Texas Clean Fuels

53. CONCLUSIONS & FUTURE DIRECTIONS

54. Marine Algal derived compounds provide a novel and rich source of
chemical diversity that can contribute to design and development of new
and potentially useful pharmaceutical agents.
Algal genomics provided good opportunities to identify and characterize
high-value bioactive compounds derived from marine microalgae.
Utilizing our salt lakes and coastal area , the production of macro and
micro algal may increased. This approach help to more income generation
to our country.
Consumption of Seaweed foods helps to improve our health status and
also act as good nutraceuticals for many diseases.
A proactive interaction between researchers, the pharmaceutical marine
biotech sector and government regulating agencies is crucial to the
incorporation of this challenging new tool in clinical medicine.

55. THANK YOU