Nam Jin-Sik, Jang Hye-Lim, Rhee Young Ha
Dept. of Food and Nutrition, Suwon Women's Univ., 1098 Juseok-ro, Bongdam-eup, Hwaseong-si, Gyeonggi, 18333, Republic of Korea.
Food Analysis Research Center, Suwon Women's Univ., 1098 Juseok-ro, Bongdam-eup, Hwaseong-si, Gyeonggi, 18333, Republic of Korea.
J Food Sci. 2017 Aug;82(8):1827-1833. doi: 10.1111/1750-3841.13806. Epub 2017 Jul 17.
Pawpaw (Asimina triloba [L.] Dunal) possesses antioxidant compounds and strong inhibitors of cancer cells, and is widely cultivated in North America, Canada, and Korea. We analyzed the total phenolic and total flavonoid contents (TPC and TFC, respectively) of pawpaw plants grown in Korea and the antioxidant activities of their roots, twigs, leaves, and fruit with respect to 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging activity, 2,2'-azino-bis diammonium salt (ABTS) radical scavenging activity, ferrous (Fe ) chelating ability, and nitrite scavenging activity. Pearson's correlation analyses revealed a linear correlation between TPC and antioxidant activities (r >0.69). Root methanol extracts had higher TPC and antioxidant activities than other extracts, which was also consistent with those from the phenolic compounds found in those extracts. Therefore, antioxidant activities seem to depend on the TPC of each pawpaw tissue and pawpaw roots might be useful as a natural source of natural antioxidants.
番荔枝（Asimina triloba [L.] Dunal）含有抗氧化化合物和强效癌细胞抑制剂，在北美、加拿大和韩国广泛种植。我们分析了韩国种植的番荔枝植株的总酚含量和总黄酮含量（分别为TPC和TFC），以及它们的根、嫩枝、叶和果实对1,1-二苯基-2-苦基肼（DPPH）自由基清除活性、2,2'-联氮-双（3-乙基苯并噻唑啉-6-磺酸）二铵盐（ABTS）自由基清除活性、亚铁（Fe）螯合能力和亚硝酸盐清除活性的抗氧化活性。皮尔逊相关性分析显示TPC与抗氧化活性之间存在线性相关性（r>0.69）。根甲醇提取物的TPC和抗氧化活性高于其他提取物，这也与这些提取物中发现的酚类化合物一致。因此，抗氧化活性似乎取决于每个番荔枝组织的TPC，番荔枝根可能作为天然抗氧化剂的天然来源。
