Antioxidant evaluation in the sweet potato purple (Ipomoea batatas L.) Leafs tea
محفوظ في:
| المؤلفون: | , , |
|---|---|
| التنسيق: | artículo original |
| الحالة: | Versión publicada |
| تاريخ النشر: | 2019 |
| الوصف: | A purple sweet potato (Ipomoea batatas L.) leaves, a byproduct of agroindustry, mainly are used in animal feed, and also are consumed in salads as vegetable in Asian countries, a new use for these leaves in our region will be tea dinks, in order to extract bioactive compounds present in their leaves. The aim was to determine the phenolic compounds and antioxidant capacity the purple sweet potato leaves tea (TCM), an aqueous extraction at boiling temperature the dried leaves of purple sweet potato from Pachachaca valley Abancay-Apurímac, Perú was carried and analyzed, whit commercial green tea as a reference (TVC). The content of total polyphenols by Folin Ciucalteau was determined, obtaining 14.16 and 9.40 mg of GAE/ g leaves for TCM and TVC respectively. The antioxidant activity by two methods was evaluated, the first one through antioxidant capacity equivalent to Trolox (TEAC) with 2,2’-azino-bis-3-etilbenzotiazolina-6-sulfónico (ABTS), obtaining 8.61 and 7.98 µmol Trolox/mL in TCM and TVC respectively, these result evidence that TCM exhibited better bioactive compounds and antioxidant capacity, likewise TEAC by 1,1-diphenyl-2-picrylhydrazyl (DPPH) was evaluated reporting 25.16 and 25.63 µmol Trolox/g for TCM an TVC, implying that TCM display an antioxidant capacity similar to TVC considered an antioxidant beverage by excellence. A correlation r=0.9129 between polyphenols and antioxidant was also found. |
| البلد: | Portal de Revistas TEC |
| المؤسسة: | Instituto Tecnológico de Costa Rica |
| Repositorio: | Portal de Revistas TEC |
| اللغة: | Español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/4790 |
| الوصول للمادة أونلاين: | https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4790 |
| كلمة مفتاحية: | Purple sweet potato leaves antioxidant herbal teas agroindustrial by-products Hojas de camote morado antioxidantes tés herbales subproductos agroindustriales |