This document discusses the processing and freezing of marine products. It provides guidelines for freezing seafood, including looking for certification labels on shellfish, discarding cracked shells, and checking for leg movement in live crabs and lobsters. The freezing process is described, where the fish's temperature drops through stages of thermal arrest and ice formation. Frozen storage can preserve fish for over a year if done properly by preventing bacterial growth and slowing chemical changes through very low temperatures. Packaging and limiting oxygen exposure can reduce oxidation and dehydration, which are the primary causes of quality deterioration during frozen storage.
There are different fish processing system in the world among them canning is a well known system where fish is preserved by permanent, hermetically sealed containers through agency of heat.
There are different fish processing system in the world among them canning is a well known system where fish is preserved by permanent, hermetically sealed containers through agency of heat.
Fish meal or fishmeal, is a commercial product made from fish and the bones and offal from processed fish.
In the UK the term fish meal means a product obtained by drying and grinding or otherwise treating fish or fish waste to which no other matter has been added.
Post harvest handling and preservation of fresh fish and seafoodMaya Sharma
It describes about economic importance of fish production, trade and utilization, contribution of fish to human health, postharvest losses in fish and seafood
Surimi is a Japanese word that literally means "ground meat". 2. To make surimi, the lean meat from white fleshed fish such as pollock is pulverized into a thick paste. The gelatinous paste can then be combined with various additives to become fake crab, fake lobster, and whatnot.
Preparation of surimi and minced based fishery productsAshish sahu
Surimi processing involves processing whole or gutted fish into mince, repeated washing of the mince (at mince and water ratio of 1:3 for 2-3 cycles), dewatering (done by manual press, nylon mesh bag method, Centrifugation and screw press till the moisture content of the meat, ranges between 80% and 84%) and refining.
INTRODUCTION
Several method of employed for preservation and extension of self life of fish ranging from primitive drying/smoking to freezing and freez drying. Another important step forward is the development of technology for transportation of live fish. A notable and conceptual difference from all these method is utilization of ionizing radiation for food preservation.
Preservation of foods using ionizing radiation is called irradiation. Preservation of food by irradiation is on of the truly peaceful uses of atomic energy irradiation of foods has been found useful and effective to:
• Inhibit sprouting or reducing weight losses in vegetable such as potato, onion etc. during storage.
• Delay the ripening of fruits.
• Kill insect pests in fruits, grains or spices.
• Reduce or eliminate food spoiling microorganisms in meat and seafood products.
Fish meal or fishmeal, is a commercial product made from fish and the bones and offal from processed fish.
In the UK the term fish meal means a product obtained by drying and grinding or otherwise treating fish or fish waste to which no other matter has been added.
Post harvest handling and preservation of fresh fish and seafoodMaya Sharma
It describes about economic importance of fish production, trade and utilization, contribution of fish to human health, postharvest losses in fish and seafood
Surimi is a Japanese word that literally means "ground meat". 2. To make surimi, the lean meat from white fleshed fish such as pollock is pulverized into a thick paste. The gelatinous paste can then be combined with various additives to become fake crab, fake lobster, and whatnot.
Preparation of surimi and minced based fishery productsAshish sahu
Surimi processing involves processing whole or gutted fish into mince, repeated washing of the mince (at mince and water ratio of 1:3 for 2-3 cycles), dewatering (done by manual press, nylon mesh bag method, Centrifugation and screw press till the moisture content of the meat, ranges between 80% and 84%) and refining.
INTRODUCTION
Several method of employed for preservation and extension of self life of fish ranging from primitive drying/smoking to freezing and freez drying. Another important step forward is the development of technology for transportation of live fish. A notable and conceptual difference from all these method is utilization of ionizing radiation for food preservation.
Preservation of foods using ionizing radiation is called irradiation. Preservation of food by irradiation is on of the truly peaceful uses of atomic energy irradiation of foods has been found useful and effective to:
• Inhibit sprouting or reducing weight losses in vegetable such as potato, onion etc. during storage.
• Delay the ripening of fruits.
• Kill insect pests in fruits, grains or spices.
• Reduce or eliminate food spoiling microorganisms in meat and seafood products.
The TLE module about Cookery for Grade 10 students is a comprehensive course that provides learners with the basic knowledge and skills in food preparation and cooking. The module covers a wide range of topics including food safety and sanitation, kitchen tools and equipment, principles of cooking, and recipe preparation.
Students will have the opportunity to learn about different cooking techniques and methods such as boiling, frying, baking, and grilling. They will also discover the importance of proper nutrition and how to prepare healthy and balanced meals.
Throughout the module, students will be engaged in hands-on activities and practical exercises to develop their cooking skills. They will also be challenged to apply their knowledge in creating their own recipes and dishes.
By the end of the module, students will have gained a solid foundation in cookery, including the ability to plan, prepare, and present a variety of meals. They will have also developed important life skills such as teamwork, communication, and problem-solving that will serve them well in any future career or endeavor.
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Development of the Idea of using the Intermittent Solar Ammonia Absorption Cycle (ISAAC) Refrigerator, Insulated Containers and Cold Storage for Preservation of Food in Developing Countries.
Powerpoint presentation of "Fish and Shellfish" in Principles of food production (.
Disclaimer: I do not own the rights nor property of this powerpoint presentation. All rights reserved to the owner.
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Hotel management involves overseeing all aspects of a hotel's operations to ensure smooth functioning and exceptional guest experiences. This multifaceted role includes tasks such as managing staff, handling reservations, maintaining facilities, overseeing finances, and implementing marketing strategies to attract guests. Effective hotel management requires strong leadership, communication, organizational, and problem-solving skills to navigate the complexities of the hospitality industry and ensure guest satisfaction while maximizing profitability.
Food Processing and Preservation Presentation.pptxdengejnr13
The presentation covers key areas on food processing and preservation highlighting the traditional methods and the current, modern methods applicable worldwide for both small and large scale.
2. INTRODUCTION
• The freezing process alone is not a method of preservation. It is merely the means of preparing the
fish for storage at a suitably low temperature. In order to produce a good product, freezing must be
accomplished quickly. A freezer requires to be specially designed for this purpose and thus freezing
is a separate process from low temperature storage.
• As with any type of food it is important to handle seafood safely to reduce the risk
of foodborne illness, often called “food poisoning.” Follow these safe handling tips
for buying, preparing, and storing fish and shellfish – and you and your family
can safely enjoy the fine taste and good nutrition of seafood.
3. FREEZING OF STORAGE SEAFOOD
• Only buy fish that is refrigerated or displayed on a
thick bed of fresh ice (preferably in a case or under
some type of cover). Because the color of a fish can be
affected by several factors including diet, environment,
treatment with a color fixative such as carbon
monoxide or other packaging processes, color alone is
not an indicator of freshness. The following tips can
help you when making purchasing decisions:
• Fish should smell fresh and mild, not fishy, sour, or
ammonia-like.
• A fish’s eyes should be clear and shiny.
4. •Whole fish should have firm flesh and red gills with no odor. Fresh
fillets should have firm flesh and red blood lines, or red flesh if fresh
tuna. The flesh should spring back when pressed
•Fish fillets should display no discoloration, darkening, or drying
around the edges.
•Shrimp, scallop, and lobster flesh should be clear with a pearl-like
color and little or no odor.
•Some refrigerated seafood may have time/temperature indicators
on their packaging, which show if the product has been stored at the
proper temperature. Always check the indicators when they are
present and only buy the seafood if the indicator shows that the
product is safe to eat.
•Fresh fish and fish fillets sold as “Previously Frozen” may not have
all the characteristics of fresh fish (e.g., bright eyes, firm flesh, red
gills, flesh, or bloodlines), however, they should still smell fresh and
mild, not fishy, sour, or rancid.
5. GUIDELINES ON FREEZING
• Look for the label: Look for tags on sacks
or containers of live shellfish (in the shell)
and labels on containers or packages of
shucked shellfish. These tags and labels
contain specific information about the
product, including the processor’s
certification number.
• Discard Cracked/Broken Ones: Throw
away clams, oysters, and mussels if their
shells are cracked or broken.
6. • Do a “Tap Test”: Live clams, oysters, and mussels will close when the shell is tapped. If they
don’t close when tapped, do not select them.
• Check for Leg Movement: Live crabs and lobsters should show some leg movement. They
spoil rapidly after death, so only live crabs and lobsters should be selected and prepared.
Fish is largely water, normally 60-80 percent depending on the species, and the freezing process converts most of
this water into ice.
Freezing requires the removal of heat, and fish from which heat is removed falls in temperature in the manner shown
in Figure 1. During the first stage of cooling, the temperature falls fairly rapidly to just below 0°C, the freezing point of
water. As more heat requires to be extracted during the second stage, in order to turn the bulk of the water to ice, the
temperature changes by a few degrees and this stage is known as the period of "thermal arrest". When about 55% of
the water is turned to ice, the temperature again begins to fall rapidly and during this third stage most of the
remaining water freezes. A comparatively small amount of heat has to be removed during this third stage.
7. FROZEN OF SEAFOOD
• Frozen seafood can spoil if the fish thaws during transport and is
left at warm temperatures for too long before cooking.
• Don’t buy frozen seafood if its package is open, torn, or crushed
on the edges.
• Avoid packages with signs of frost or ice crystals, which may
mean the fish has been stored a long time or thawed and
refrozen.
• Avoid packages where the “frozen” fish flesh is not hard. The fish
should not be bendable.
8. Store Properly
Put seafood on ice or in the refrigerator or freezer soon after buying it. If seafood will be used within
2 days after purchase, store it in a clean refrigerator at a temperature of 40°F or below. Use a
refrigerator thermometer to check! Otherwise, wrap it tightly in plastic, foil, or moisture-proof paper
and store it in the freezer.
frozen storage of fish can give a storage life of more than one year, if properly carried out. It has
enabled fishing vessels to rem ain at sea for long periods, and allowed the stockpiling of fish during
periods of good fishing and high catching rates, as well as widened the market for fish products of
high quality.
The mechanism by which frozen fish deteriorates is somewhat different from that causing spoilage of
chilled fish. Provided the temperature is low enough - below -10°C bacterial action will be stopped by
the freezing process. Chemical, biochemical and physical processes leading to irreversible changes
will still occur, but at a very slow rate. Deterioration during frozen storage is inevitable, and in order
to obtain satisfactory results, fish for freezing must be of good quality.
9. The rate of oxidation can be reduced by reducing the exposure to
oxygen. This can be achieved by introducing a barrier at the surface of
the fish. Thus fish in a block keep better than fish frozen individually,
and the addition of an ice glaze is beneficial. Glazing is carried out after
freezing by brushing or spraying chilled water onto the surface of the
fish or by dipping in cold water. Packaging materials, impermeable to
moisture and oxygen can be effective, especially if vacuum packaging
is employed.
Some transfer of moisture from the product is unavoidable during
freezing and frozen storage, which leads to dehydration of the fish.
Good operating conditions are essential in order to keep dehydration to
a minimum.
It has been clearly established that fluctuating cold store temperatures
are a major cause of dehydration. In practice the more severe cases of
drying occur during frozen storage rather than during freezing. In
extreme dehydration the frozen fish acquires a dry wrinkled look, tends
to become pale or white in colour and the flesh become spongy. This
characteristic appearance is called, inappropriately, 'freezerburn'.