Antioxidant Compounds and Antioxidant Activities of Sweet Potatoes with Cultivated Conditions

Abstract

Effects of cultivated conditions on antioxidant compounds and antioxidant activities of sweet potatoes (Ipomoea batatas (L.) Lam) were determined. The cultivated variety was Shinyulmi, and they were cultivated in a conventional culture, successful cropped hairy vetch culture, successful cropped barley cultivation, successful cropped rye cultivation, successful cropped mix-seeding of hairy vetch and barley, successful cropped mix-seeding of hairy vetch and rye, and not fertilizer. The brix degree, moisture, protein, and ash content of the sweet potatoes did not significantly change with the cultivated conditions. However amylose, total dietary fiber, and mineral content had significant changes. The total polyphenol, flavonoid, and tannin content of the methanolic extracts of the sweet potato's pericarp showed significant differences from cultivated conditions, however, the sweet potato's sarcocarp did not significantly change. The highest DPPH and ABTS radical scavenging activities of the methanolic extracts of the sweet potatoes were 958.81 and 663.53 mg TE/100 g in the sweet potato's pericarp on the successful cropped hairy vetch culture. Generally, there was a difference in antioxidant compound content and radical scavenging activity on the methanolic extract of sweet potato with cultivated conditions.

Biological activities of sweet potato (Ipomoea batatas L.) tips and tubers

“…According to a study by Li et al ( 2012 ), the ABTS radical scavenging activity of sweet potato leaves and stalks was in the range of 8.02–14.95 AAE/g, and the content of the leaves was higher than that of the stalks. In addition, according to a study by Woo et al ( 2012 ), the ABTS and DPPH radical scavenging activity of sweet potato tubers were 4.38–6.63 and 5.46–9.58 mg/g, respectively, and are similar to the results of this study.…”

“…According to a study by Lee, Park, et al (2007), the high phenolic substances in sweet potato parts and their antioxidant activity corroborate the high content of phenolic substances and good antioxidant activity Inhibitory activity( % ) = (1 − absorbance at the sample addition ∕ absorbance at no addition) × 100 et al (2012), the ABTS radical scavenging activity of sweet potato leaves and stalks was in the range of 8.02-14.95 AAE/g, and the content of the leaves was higher than that of the stalks. In addition, according to a study by Woo et al (2012), the ABTS and DPPH radical scavenging activity of sweet potato tubers were 4.38-6.63 and 5.46-9.58 mg/g, respectively, and are similar to the results of this study.…”

Anti-Melanogenic Effect of Ethanolic Extract of Sorghum bicolor on IBMX–Induced Melanogenesis in B16/F10 Melanoma Cells

“…In this study, ESB showed an excellent inhibit lipid peroxidation ( Figure 2C). The phenolic compounds contained in natural plants were reported to be associated with radical scavenging activity [26]. Also, Maresca et al [27] reported that removal of ROS with antioxidants is effective in inhibiting melanin biosynthesis.…”

Food Composition of Raw, Boiled, and Roasted Sweet Potatoes

“…웰빙 건강식품으로 알려진 고구마에 관한 연구로 는 고구마의 품종별 성분연구 (Kim 1996), 고구마를 이용한 식사대용 유동식 제품개발 (Hong et al 1999), 고구마의 어원과 품성에 대한 문헌연구 (Kim 2011), 고구마의 육질색 종류별 고구마 분말의 이화학적 특 성 , 재배조건에 따른 고구마의 항산 화성분 연구 (Woo et al 2012), 고구마 네가지 품종 의 조리방법에 따른 생리활성 변화 등의 연구가 보고되고 있다. 그 밖에도 항산화 및 생 리활성 Kim et al 2015;Park et al 2015), 항알레르기 (Kwak et al 2013) 및 항돌연변이 Park et al 2011 than that in PSP.…”