市售蔬菜抗氧化力之研究

Studies on the Antioxidant Capacity of Vegetables

梁佑慎(Yow-Shen Lang) ； 柯立祥(Lih-Shang Ke)

《臺灣園藝》 52卷2期 (2006/06) Pp. 171-180

https://doi.org/10.6964/JTSHS.200606.0171

摘要

本研究針對屏東地區三個不同市場的市售32種蔬菜，利用TEAC (Trolox equivalent antioxidant capacity)法分析蔬菜總抗氧化力。根據TEAC法測定結果，將蔬菜依其鮮重的總抗氧化力(total antioxidant capacity; TAC)高低可分爲三群：TAC值高於5 mmol Trolox/g爲抗氧化力高的蔬菜，包括甘藷葉、黃色甜椒、菠菜、紅色甜椒、青花菜、豌豆、蘆筍。TAC值介於3-5 mmol Trolox/g爲抗氧化力中等的蔬菜，包括山蘇、青梗白菜、油菜、綠色甜椒、茄子、蕹菜、甘藍腋芽、甜玉米、大蒜、韭菜、花椰菜。TAC值低於3 mmol Trolox/g爲抗氧化力低的蔬菜，包括綠豆芽、馬鈴薯、甘藷、甘藍、蘿蔔、山藥、苦瓜、菜豆、洋蔥、芹菜、皺葉萵苣、胡瓜、胡蘿蔔、絲瓜。而以清除DPPH (α, α-diphenyl-β-picrylhydrazyl)能力法分析的蔬菜抗氧化力排序結果與TEAC法大致相同。

關鍵字

蔬菜 ； 抗氧化力 ； TEAC ； DPPH

並列摘要

This study was designed to investigate the total antioxidant capacity (TAC) of a total of 32 vegetables sold at three separate local markets in Pingtung county. The TAC of vegetables were measured by TEAC (Trolox equivalent antioxidant capacity) assay and expressed by Trolox (6hydroxy-2, 5, 7, 8-tetramethylchroman-2-carboxylic acid). The 32 vegetables could be divided by TAC values into three groups: the first group, with high antioxidant capacity (＞5 mmol Trolox/g), included sweet potato (leaf), sweet pepper (yellow fruit), spinach, sweet pepper (red fruit), broccoli, snow pea and asparagus, the second group, with medium antioxidant capacity (35 mmol Trolox/g), included bird nest fern, pakchoi, edible rape, sweet pepper (green fruit), eggplant, water convolvulus, cabbage sprouts, sweet corn, garlic, Chinese chive and cauliflower, the third group with lower antioxidant capacity (＜3 mmol Trolox/g), included mung bean sprout, potato, sweet potato, cabbage, radish, yam, bitter gourd, kidney bean, onion, celery, lettuce, cucumber, carrot and vegetable sponge. The result obtained from DPPH (α, α-diphenyl-β-picrylhydrazyl) method correspond to those from TEAC method.

並列關鍵字

vegetable ； antioxidant ； TEAC ； DPPH