نتایج جستجو برای: food spoilage
تعداد نتایج: 272426 فیلتر نتایج به سال:
The definition of food quality may differ for processors and consumers, but generally organoleptic characteristics, such as flavour, odour and appearance, as well as extended shelf life are among the most important of its attributes. Spoilage of food by microbial contamination may occur at any point during production, altering any one or all of these characteristics renders the product unusable...
A new pH-sensing film was developed by using tamarind seed polysaccharide (TSP) and natural dye extracted from litmus lichen (LLE). The addition of LLE from 0 to 2.5% decreased the tensile strength and elongation at break from 30.20 to 29.97 MPa and 69.73% to 60.13%, respectively, but increased the water vapor permeability from 0.399 × 10−9 to 0.434 × 10−9 g·s−1·m−1·Pa−1. The UV–Vis spectra of ...
The objective of this study was to investigate the adhesion of isolated spoilage bacteria to packaging materials used in the food industry. Microorganisms were isolated from commercial fruit-flavored mineral water in plastic bottles with flocks as a visual defect. The Gram-negative rods were identified using the molecular method through the amplification of a partial region of the 16S rRNA gene...
Treatment of food with ionizing energy-'food irradiation'is finally becoming reality in many countries. The benefits include an improvement in food hygiene, spoilage reduction and extension of shelf-life. Although properly irradiated food is safe and wholesome, consumers should be able to make their own free choice between irradiated and non-irradiated food. For this purpese labelling is indisp...
The ability of two strains of Trichoderma, isolated from food, to produce the Volatile Organic Compounds 1,3-pentadiene and styrene was investigated. One of the strains had been implicated in a case of food spoilage involving the production of both compounds. In vitro in potato dextrose broth, the strains produced both 1,3-pentadiene and styrene within 5 days in the presence of sorbic acid and ...
Foeniculum vulgare Mill. commonly known as fennel, belongs to family Apiaceae. The aqueous and alcoholic seed extracts of Foeniculum vulgare Mill. were evaluated for their antifungal activity against Alternaria alternata, Mucor rouxii and Aspergillus flavus. The method used for determination of antifungal activity of both aqueous and alcoholic seed extracts was agar well diffusion method. The a...
Since about over a quarter of our harvested food is lost due to various kinds of wastage and spoilage, food preservation is no less important than food production. It is sounder policy to conserve what is produced than to produce more to compensate for subsequent losses Besides the prevention of losses, demand is also growing in both the developed and the developing countries for food which is ...
Natural food antimicrobials are bioactive compounds that inhibit the growth of microorganisms involved in food spoilage or food-borne illness. However, stability issues result in degradation and loss of antimicrobial activity. Nanoencapsulation allows protection of antimicrobial food agents from unfavorable environmental conditions and incompatibilities. Encapsulation of food antimicrobials con...
Food preservation through natural methods represents one of the concerns world‐ wide to solve economic losses due to microbial decomposition of raw materials and foodstuffs. However, public concern over the emergence of strains resistant to many antibiotics, particularly pathogens such as E. coli and Salmonella sp. draw much attention as new challenge in food industry is to find new alternative...
The occurrence of bacteria in the food processing environments plays a key role in food contamination and development of spoilage. Species of the genus Pseudomonas are recognized as major food spoilers and the capability to actually determine spoilage can be species- as well as strain-dependent. In order to improve the taxonomic resolution of 16S rRNA gene amplicons, in this study we used oligo...
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