Senadheera S P A S, Ekanayake S, Wanigatunge C
Department of Biochemistry, Faculty of Medical Sciences, University of Sri Jayewardenepura, Sri Lanka.
Ceylon Med J. 2014 Mar;59(1):4-8. doi: 10.4038/cmj.v59i1.6731.
To evaluate the antioxidant potential of porridges (kola kenda) made incorporating herbs.
Experimental study. Main outcome measures Total phenolic content was estimated by Folin Ciocalteau method (GAEmg/g(FW) and the antioxidant potential by ABTS free radical scavenging activity (TEAC(μg)/100g (FW).
Total phenolics and antioxidant potentials of porridges ranged from 5-73 TEAC(μg) /100g and 0.9- 34.2 GAEg/100g respectively. Significantly high (p ≤ 0.05) total phenolic contents were observed in C. auriculata ("Ranawara") [342 GAE mg/g (FW)] and in M. koenigii ("Karapincha") [199 GAEmg/g(FW)]. The highest antioxidant effect was in C. auriculata ("Ranawara") [73 TEAC(μg)/100g(FW)] followed by M. koenigi ("Karapincha") [26 TEAC(μg)/100g (FW)] and C. ternatea ("Ela Katarolu") [24 TEAC(μg)/100g (FW)]. Lowest antioxidant effect was in porridges made with rice and coconut milk both of which had comparable values. A positive correlation (correlation coefficient > 0.8) between total phenolics and the antioxidant potential was observed for all porridges except for Asparagus racemosus (Haathawariya) porridge which had a high antioxidant potential with a low phenolic content.
This study provides evidence that green leafy porridges are a good source of antioxidants in addition to their reported low glycaemic indices.
评估添加草药制成的粥（科拉肯达）的抗氧化潜力。
实验研究。主要观察指标采用福林 - 乔卡托法测定总酚含量（没食子酸当量毫克/克（鲜重）），通过ABTS自由基清除活性测定抗氧化潜力（Trolox当量微克/100克（鲜重））。
粥的总酚含量和抗氧化潜力分别为5 - 73 Trolox当量微克/100克和0.9 - 34.2没食子酸当量毫克/100克。在耳叶补血草（“拉纳瓦拉”）[34.2没食子酸当量毫克/克（鲜重）]和莫尼木（“卡拉平查”）[19.9没食子酸当量毫克/克（鲜重）]中观察到总酚含量显著较高（p≤0.05）。抗氧化效果最高的是耳叶补血草（“拉纳瓦拉”）[73 Trolox当量微克/100克（鲜重）]，其次是莫尼木（“卡拉平查”）[26 Trolox当量微克/100克（鲜重）]和蝶豆（“埃拉卡塔罗卢”）[24 Trolox当量微克/100克（鲜重）]。抗氧化效果最低的是用大米和椰奶制成的粥，二者数值相当。除了总酚含量低但抗氧化潜力高的石刁柏（“哈塔瓦里亚”）粥外，所有粥的总酚含量与抗氧化潜力之间均呈正相关（相关系数>0.8）。
本研究提供了证据，表明绿叶粥除了具有报道的低血糖指数外，还是抗氧化剂的良好来源。
