کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7583832 | 1492021 | 2019 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surfactant TWEEN20 provides stabilisation effect on anthocyanins extracted from red grape pomace
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کلمات کلیدی
ABTSAOPGlcCGAGAE2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) - 2،2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid)t1/2 - t1 / 2gallic acid equivalents - اسید گالیک اسید معادلStorage - ذخیره سازیSurfactant - سورفکتانتethanolic extract - عصاره اتانولیColloidal gas aphrons - فروغ گاز کلوئیدیAntioxidant power - قدرت آنتی اکسیدانHalf-life - نیمه عمرGrape pomace - گلوتن انگور
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Red grape pomace, a wine-making by-product is rich in anthocyanins and has many applications in food and pharmaceutical industry. However, anthocyanins are unstable during processing and storage. This study aimed to investigate the stability of anthocyanins obtained by hydroalcoholic extraction (with and without sorbic acid) and colloidal gas aphrons (CGA) separation; a surfactant (TWEEN20) based separation. Anthocyanins in CGA samples showed higher stability (half-lifeâ¯=â¯55â¯d) than in the crude extract (half-lifeâ¯=â¯43â¯d) and their stability increased with the concentration of TWEEN20 in the CGA fraction (6.07-8.58â¯mM). The anthocyanins loss in the CGA sample (with the maximum content of surfactant, 8.58â¯mM) was 34.90%, comparable to that in the crude ethanolic extract with sorbic acid (EE-SA) (31.53%) and lower than in the crude extract (44%). Colour stabilisation was also observed which correlated well with the stability of individual anthocyanins in the EE and CGA samples. Malvidin-3-o-glucoside was the most stable anthocyanin over time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 271, 15 January 2019, Pages 224-231
Journal: Food Chemistry - Volume 271, 15 January 2019, Pages 224-231
نویسندگان
Nurmahani MohdMaidin, Maria Jose Oruna-Concha, Paula Jauregi,