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Impact of hydrothermal processing on squalene, alpha-tocopherol, and fatty acid content in Job's tears grain milled fractions: evaluation of their storage stability.

Luithui, Yoya and Kamani, Mohammad Hassan and Sreerama, Y. N. and Meera, M. S. (2020) Impact of hydrothermal processing on squalene, alpha-tocopherol, and fatty acid content in Job's tears grain milled fractions: evaluation of their storage stability. Journal of the Science of Food and Agriculture. ISSN 0022-5142

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Abstract

BACKGROUND: Job's tears possess an exceptionally high amount of fat and the unsaponifiable fraction is a potential source of bioactive compounds. The aim of this study was to determine the effect of hydrothermal processing on squalene, ⊍-tocopherol, and fatty acids in the whole-grain, milled fractions, and their storage stability. RESULTS: The highest level of squalene content was found in the bran fractions of native and processed Job's tears (11.54–12.75 mg 100 g−1 ). A remarkably high amount of ⊍-tocopherol was also found in the bran (59.75 ± 0.47 mg 100 g−1 ) and germ (67.05 ± 0.94 mg 100 g−1 ) of the processed grain fractions. The storage stability evaluation of these bioactive compounds in the polished grains revealed no significant difference between 0 and 15 days of storage under elevated temprature of 37 °C and 92% relative humidity (accelarated storage conidition) and retained the bioactive compounds longer in the processed grains. CONCLUSION: These results suggest that the processed Job's tears milled fractions with high bioactive compounds and improved shelf life can be used as food ingredients in product development.

Item Type: Article
Uncontrolled Keywords: hydrothermal treatment; fractionation; storage stability; squalene; ⊍-tocopherol; fatty acids
Subjects: 600 Technology > 08 Food technology > 21 Cereals > 05 Ragi (Finger Millet)
600 Technology > 08 Food technology > 05 Processing and Engineering
Divisions: Grain Science and Technology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 01 Jan 2021 07:06
Last Modified: 01 Jan 2021 07:06
URI: http://ir.cftri.res.in/id/eprint/14743

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