1. Introduction High losses reported in the postharvest cycle of catfish (Clarias gariepinus) in Nigeria, estimated at 30-50% due largely to inefficient preservation and storage techniques (Tesfay and Teferi, 2017) calls for a great concern in the field of food technology that has its goals geared towards food security. Although nutritionally and economically valued, catfish is highly perishable and requires immediate processing and proper storage during pumper harvest to preserve the quality for future use and minimise the huge postharvest losses associated with this food of high protein source. Presently in Nigeria, smoking is the commonest curing method for the whole catfish (Abolagba and Nuntah, 2011; Olayemi et al., 2015), …show more content…
Although microbial infiltration to food can occur at every process from the raw material and poor handling during processing, any pathogen introduced at any point can develop and grow during storage. Therefore, processing treatments and choice of packaging can influence the survival of these organisms in the stored food (FDA, 2001). Consequently, seeking an improved processing and preservation technique like effective dehydration and adequate packaging to ameliorate the problem of microbial deterioration in dried fish during storage cannot be …show more content…
Hence, the determination of microbial load remains the major indicator for the safety of the product (Relekar et al., 2014). Therefore, the objective of this work was to establish an effective treatment and adequate packaging material for dehydrated catfish and assess the storage stability of the body and head parts through the determination of microbial
In using Goldfish in experimenting with tobacco’s stimulating effects, we are able to measure tobacco’s stimulating effect by closely monitoring the fish’s metabolism indirectly through its rate of oxygen consumption. The null hypothesis for this experiment is that there is no difference between the Goldfish’s exposure or non exposure to tobacco while the alternative hypothesis is that there is a difference between the two treatments.
This method is usually carried out on ready to eat food and processed meat and poultry. This method is a proven way to extend shelf life by killing microorganisms and pathogens, which are the reason processed meat such as deli meats last so long. However, there are negative effects of this method. There is a change in nutritional value and sensory value in foods that have been used in this process. It can change the flavour and can cause vitamin and protein destruction. However, non-thermal methods offer an extension in shelf life without changing the sensory values or nutritional values. It is a low cost method of food processing also. Non thermal methods have a big place in the future of food processing as consumers are becoming more aware of the nutritional value of the food, as well as wanting to save money and enjoy the flavour of the
One of the sectors facing the largest impact is the seafood industry. Fish products are prevalent in pet food products as well as human diets. Given such a high demand on the seafood industry,
Temperature control is an important during desalting and storage. Once the salted fish is desalted, the microbial is rapidly growth in it (Oliveira et al., 2012).
Blackfish has an argument is based on emotions and is not truthful in its facts. However, the emotions that it preys upon are heavily motivating for the audience. Blackfish commits numerous fallacies but the most apparent is distortion of evidence. It's because of this that they are able to justify every statement made in Blackfish because they are able to fabricate or alter the necessary information very well. Blackfish has an underlying trait of making you feel negative about SeaWorld rather than think about what SeaWorld has actually done.
The safety of meat and poultry is a topic that has been debated for a number of years. Contamination is especially a concern when raising cattle and turkey for food. A recent article from DiGregorio (2013) highlights a debate over the safety of ground turkey sold in U.S. supermarkets. According to the Consumer’s Union in the article, a large percentage of ground turkey was found to be contaminated with fecal-associated bacteria, such as Escherichia coli, Enterococcus, along with other types of pathogens, such as Salmonella and methicillin-resistant Staphylococcus aureus (MRSA) (DiGregorio 2013).
RTE foods are under scrutiny due to the widespread outbreaks of Listeriosis over the last 2 decades. Post-processing contamination is a common pathway for L. monocytogenes to be introduced into food products because it is so widely spread in the environment (1). Once contamination occurs, L. monocytogenes can proliferate at refrigerated temperatures prior to consumer use of the food (1). RTE foods are typically not further processed after being received by consumers or retailers, which allows for Listeria monocytogenes to proliferate and infect individuals under the right circumstances.
The texture of fish is an important quality characteristic, it determines consumer acceptance and hence the marketability of the final products. Hultmann and Rustad (2004).
Select the Right Oil: The right oil can make or break your catfish. Go for an oil with a high smoke point, like peanut oil, for best results.
There are many ways to store food safely. Let’s say you’re going on a backpacking trip and have the options of pre-cooked hamburgers, fresh strawberries, peanut butter, crackers, and raisins. What foods should you leave behind because of bacterial growth and which foods can you take? Foods with higher water activity levels are likely to last shorter because they will have microorganisms living inside. Some microorganisms are microbes and enzymes. To prevent microorganisms from living inside, foods with higher water activity levels than 0.85 aw, potentially hazardous foods, must be kept refrigerated to prevent bacteria growth, like fresh fruit of raw meat. Potentially hazardous foods are foods that can cause illness if their bacterial growth isn’t put to an end.
The Nile Perch is an important fish in Africa and a prized catch for a sport fishermen, and could be very expensive to sell. The Nile Perch has black eyes with a silver and blue tinge. The Lates Niloticus, also known as the Nile perch, is one of the most prized fish to catch for fishermen. However, other people in the area do not see the fish as such a prize, the fish’s diet consists of the fish ordinary people are used to consuming in their own diet. The average Nile perch weighs in at five hundred pounds and up to six feet long. The fish tends to cause disarray when introduced to new areas, consuming fish of native populations. The fish has very distinctive features, its body is a slight blue color and it also has black eyes with a yellow ring surrounding them. Surprisingly, the female fish is usually larger
Management of aquaculture business is an intensive and time consuming job in terms of assess water quality, type of feed, disease control, dissolved oxygen, temperature and the farm environment. Cost proficiency in production will translate into profit; standardization of farm products; marketing strategy in terms of quality, target market, etc, with a quality labor mix. It is equally very important for one to understand the policy of the Federal Government of Nigeria on fish importation, and possible incentives for local
The nature of the product is such that it must be handled under strict conditions. The core product which is crab meat must be stored and processed under sanitary conditions and strict HACCP standards must be adhered to.
Aquaculture Management – Scallop Introduction: Why should you go into aquaculture? Fishes (seafood) are known to produce protein for human consumption more efficiently than any other species, also stated by nutritionists, fish provides healthier forms of protein. http://marinelife.about.com/od/invertebrates/tp/10-Facts-About-Scallops.htm 1st Stage: Collection of spat (scallop larvae) There are two ways to obtain spat to start an aquaculture farm: • Collection of wild spat - set up a series of mesh spat bags suspended in the water column on a line anchored to the seafloor in an area known to have high scallop productivity. The concept of the collection is that the spats will pass through the mesh bag and attach to the material stuffed inside and grow until they are larger than the mesh material to be collected.
Aquaculture is the farming of aquatic organisms such as fish, crustaceans, mollusks, aquatic plants. It involves gathering freshwater and saltwater populations under controlled settings, and can be compared with commercial fishing, which is the harvesting of wild fish. Farming implies some form of involvement in the nurturing process to enhance production, such as regular stocking, feeding, and protection from predators. It also implies individual or business ownership of the stock being gathered. The reported output from global aquaculture operations would supply one half of the fish and shellfish that is directly consumed by humans.