Valorization and characterization of corn by-product polyphenols through green extraction technologies.

Autor:	Faiza N; Department of Food Sciences, Government College University, Faisalabad, Pakistan., Imran A; Department of Food Sciences, Government College University, Faisalabad, Pakistan., Arshad MU; Department of Food Sciences, Government College University, Faisalabad, Pakistan., Arshad MS; Department of Food Sciences, Government College University, Faisalabad, Pakistan., Shah MA; Department of Economics, Kebri Dehar University, Kebri Dehar, Ethiopia.; Division of Research and Development, Lovely Professional University, Phagwara, Punjab, India.
Jazyk:	angličtina
Zdroj:	Frontiers in nutrition [Front Nutr] 2023 May 09; Vol. 10, pp. 1107067. Date of Electronic Publication: 2023 May 09 (Print Publication: 2023).
DOI:	10.3389/fnut.2023.1107067
Abstrakt:	The amount of food waste throughout the world has become quite alarming and is contributing to lower food resources. The study aimed to extract and characterize the polyphenols from corn silks at immature and mature stages through conventional and green extraction techniques. Purposely, corn silks, which are some of the by-products of corn, ( Zea mays L.) were collected and subjected to proximate analysis including moisture, ash, protein, fiber, and minerals. Secondly, the antioxidants from both immature and mature corn silks were extracted by techniques involving supercritical and ultrasound extraction alongside conventional extraction. The results displayed a promising quantity of protein and fiber along with calcium, magnesium, sodium potassium, and copper. Among the extraction techniques, supercritical extraction at 3,000 Pa acquired the highest total phenolic contents (TPC), total flavonoids (TF), 2, 2-diphenylpicrylhydrazyl (DPPH), ferric-reducing antioxidant power (FRAP) activities as 128.08 ± 3.74 mg GAE/100 g, 86.73 ± 2.75 mg CE/100 g, 106.73 ± 5.10%, and 73.52 ± 2.33 μM Fe + 2/g, respectively, followed by the ultrasound and conventional extraction techniques. Between the immature and mature corn silks, the highest antioxidant activity was displayed by immature corn silks. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2023 Faiza, Imran, Arshad, Arshad and Shah.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu