Short communication: Effect of purple corn pigment on change of anthocyanin composition and unsaturated fatty acids during milk storage

Journal of Dairy Science
X Z TianS Paengkoum

Abstract

Unsaturated fatty acids (UFA) in milk give rise to radicals and lead to lipid oxidation during storage, reducing the commercial value of milk. The objective of this study was to observe the effect of anthocyanins from purple corn pigment on the oxidation of UFA in milk. Milk samples were randomly divided into 2 groups: (1) the control (without purple corn pigment) and (2) treatment (0.3% purple corn pigment), using a completely randomized design. The milk samples were placed into plastic tubes and stored at 4°C for a period of 0, 1, 3, and 7 d. Individual anthocyanin composition and UFA were detected by HPLC-mass spectrometry and gas chromatography-mass spectrometry, respectively. The results indicated that pelargonidin (0.258 vs. 0.054 µg/mL), cyanidin (5.550 vs. 1.808 µg/mL), petunidin (0.464 vs. 0.107 µg/mL), delphinidin (2.061 vs. 0.123 µg/mL), and total anthocyanin (8.332 vs. 2.091 µg/mL) significantly decreased in response to increasing storage day. Of interest, purple corn pigment had a significant effect on most of the UFA (C14:1n-5, C16:1n-7, C18:1n-9, C18:2n-6, C18:3n-3, C18:3n-6, C20:2n-6, C20:3n-3, and C20:4n-6), except for C17:1n-7 and C20:3n-6. Specifically, various stronger positive correlations were noted for an...Continue Reading

References

May 13, 1999·Prostaglandins, Leukotrienes, and Essential Fatty Acids·M S NarayanL V Venkataraman
Mar 10, 2001·The British Journal of Nutrition·H Lindmark-Månsson, B Akesson
Nov 28, 2002·Journal of Agricultural and Food Chemistry·Maarit J Eiro, Marina Heinonen
Jul 20, 2007·Molecular Nutrition & Food Research·Jens MildeJohanna Grassmann
Jan 13, 2009·Free Radical Biology & Medicine·Mauro SerafiniGiuseppe Maiani
Mar 25, 2019·Journal of Dairy Science·A N SchianoM A Drake

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Citations

Jan 7, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Raffaella ColomboAdele Papetti

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