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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

Journal Article

Journal Article

Combined effect of chemical preservative and different doses of irradiation on green onions to enhance shelf life  [2018]

Memon, Nagma; Gat, Yogesh; Arya, Shalini; Waghmare, Roji;

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Trade of fresh, healthy, easy to cook and ready to use food products have been increased due to change in consumer trends. It is crucial to retain the freshness of produce. Aim of this study was to optimize effective dose of irradiation and/or chemical preservatives on shelf-life extension of green onions and to check its efficacy on physiochemical, phytochemical, sensorial and microbial quality. Freshly-cut green onions were washed with 0.001 mol sodium hypochlorite, irradiated at 0.5 kGy, 1.0 kGy, and 1.5 kGy and/or 0.1% sodium benzoate treated. The treated samples were stored at 5 °C for 16 days. Physicochemical analysis like weight loss, pH, moisture content, phytochemical analysis like chlorophyll and beta-carotenoid content, trolox equivalent antioxidant capacity, total phenolic content, color and texture analysis, sensory evaluation and microbial studies were done. Irradiation 0.5 kGy when compared to other treatments didn’t show better results in terms of appearance, nutrient content and storage life. In addition, irradiation 1.5 kGy showed more beta-carotenoid content but it also caused electrolytic leakage due to cellular membrane damage. The combined treatment of irradiation 1.0 kGy and sodium benzoate was found to be most effective in terms of texture, color, radical scavenging activity, polyphenols, chlorophyll content and microbial safety during the storage of 16 days.

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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2019
Publisher:
Elsevier B.V.
All titles:
" Combined effect of chemical preservative and different doses of irradiation on green onions to enhance shelf life "
Other:
" Pre-press version "

From the journal

Journal of the Saudi Society of Agricultural Sciences

ISSN : 1658-077X