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Effect of industrial processing for obtaining guava paste on the antioxidant compounds of guava (Psidium guajava l.) ‘Paluma’ cv. Rev. Bras. Frutic.
Del’Arco,Ana Paula Wolf Tasca; Sylos,Célia Maria de.
Abstract Some foods constituents are subject to change during thermal and/or industrial processing. In the fruit processing industry, guava pulp is used during guava off season to obtain guava paste, produced with the addition of sugar and citric acid, subjected to various thermal processes. This study evaluated the effect of industrial processing to obtain guava paste on the content of ascorbic acid, total carotenoids, total phenolic and total flavonoid present in guava ‘Paluma’ cv. The results showed that there was an increase of antioxidants in guava pulp (15% ascorbic acid, 59% total carotenoids, 8% total phenolics and 54.5% total flavonoids), probably due to their increased concentration as a result of water loss during processing. There was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ascorbic Acid; Carotenoids; Phenolics; Antioxidant Activity.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000200901
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ความสัมพันธ์ของปริมาณแอนโทไซยานินต่อปริมาณโพลีฟีนอล และความสามารถในการต้านปฏิกิริยาออกซิเดชันในข้าวสีและไม่มีสีสายพันธุ์ต่างๆ Thai Agricultural
Nipattha Chatsuwan; Varipat Areekul.
Anthocyanin, total polyphenol content and antioxidant activities of fifty-one Thai rice cultivars were investigated. The antioxidant activities were evaluated using three different assays; ferric reducing antioxidant power (FRAP), 2,2-azino-bis-(3-ethylbenzothi azoline-6-sulphonic acid) diammonium salt (ABTS) radical cation and oxygen radical absorbance capacity (ORAC) assays. The total polyphenol content (TPC) and anthocyanin content varied significantly and ranged from 0.194-8.702 and 0.001– 6.676 mg/g (dry wt), respectively. The extracts from pigmented rice exhibited higher TPC, anthocyanin content and antioxidant activities than did the non-pigmented varieties. Among them, glutinous dark rice (GDR) had the highest levels of TPC and anthocyanin content...
Tipo: Collection Palavras-chave: Pigmented rice; Polyphenol contents; Anthocyanin; Antioxidant Activity; Correlation; Cultivars; ข้าวสี; โพลีฟีนอล; แอนโทไซยานิน; ความสามารถในการต้านปฏิกิริยาออกซิเดชัน; ค่าสัมประสิทธิ์สหสัมพันธ์; พันธุ์.
Ano: 2010 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5233
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