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Ultrasound‐assisted and micelle‐mediated extraction as a method to isolate valuable active compounds from apple pomace
Author(s) -
Malinowska Magdalena,
Śliwa Karolina,
Sikora Elżbieta,
Ogonowski Jan,
Oszmiański Jan,
KolniakOstek Joanna
Publication year - 2018
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/jfpp.13720
Subject(s) - pomace , polyphenol , chemistry , extraction (chemistry) , food science , bioavailability , antioxidant , food industry , nutraceutical , chromatography , biochemistry , biology , bioinformatics
The manuscript presents emerging technologies for extraction of the main polyphenols contained in apple pomace. Apples are a rich source of bioactive compounds. During apple juice production, large amounts of residues, known as apple pomace are generated. It is a source of carbohydrates, dietary fibers, vitamins, minerals, and polyphenols which can be used in various branches of industry. In the study, two nonthermal extraction technologies: ultrasound‐assisted extraction (UAE) and ultrasound‐assisted micelle‐mediated extraction (UAMME) were applied to obtain polyphenols from the apple waste. Two sources of apple pomace were compared: ecological (E) and conventional (C) crops. Water (UAE1), ethanol (UAE2), and 1% Rokanol aqueous solution (UAMME) were used as the extractants. The compositions of the obtained extracts were analyzed for the total polyphenolic content using Folin–Ciocalteu (F–C) method. Polyphenolic compounds content was analyzed using UPLC‐MS system. Practical applications The application of apple pomace extracts as a source of polyphenols and other biological active substances has a great potential in a various fields of industry. Antioxidants are desirable ingredients in groceries, thus described extracts can be applied as diet supplements and food additives. What is more, active compounds obtained from natural sources are characterized by relatively high bioavailability. The apple pomace extracts as a rich source of natural antioxidants have a big potential in cosmetic products as well as in food and pharmaceutical industry. The compounds can be used as an active ingredients in products for topical application. Their antioxidant activity prevents oxidative stress process and protects body cells from destructive action of free radical forms which accelerates cells aging process.