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Agronomical traits, phenolic compounds and antioxidant activity in raw and cooked potato tubers growing under saline conditions
Journal of the Science of Food and Agriculture ( IF 3.3 ) Pub Date : 2020-04-29 , DOI: 10.1002/jsfa.10411
Rawaa Akrimi 1 , Hichem Hajlaoui 2 , Valeria Rizzo 3 , Giuseppe Muratore 3 , Mahmoud Mhamdi 4
Affiliation  

BACKGROUND Potatoes yield and tubers compositions are linked to mechanisms adopted by plants to cope with salinity and often can change after cooking. The current study aimed to evaluate the effects of salinity, variety and cooking method in composition of potato tubers. Three potato varieties (Spunta, Bellini and Alaska) grown under distinct salt levels (T1: 2.2 ms cm-1 EC, T2: 8.5 ms cm-1 EC before electromagnetic treatment and 6.3 ms cm-1 EC after electromagnetic treatment, T3: 8.5 ms cm-1 EC) were studied. Yield and tuber quality attributes (starch, dry matter, specific density and tuber size) were evaluated. Carotenoids, total and individual phenolics determined by HPLC, relative antioxidant capacity (RAC) and ions content were analyzed, in both raw and water boiled tubers. RESULTS Tuber yield, starch, dry matter, ions and antioxidants were significantly influenced by the salinity level and variety. The least production and the highest antioxidants were obtained under T3. Antioxidants were influenced by cooking method, the interactions treatment × cooking method and variety × cooking method. Individual phenolic compounds exhibited different response to cooking as quercetin, caffeic acid and catechin decreased significantly after boiling. However, coumaric acid increased in Alaska tubers. CONCLUSION Salinity level, variety and cooking method are important determinants of tuber yield and composition. Electromagnetic water may be useful to enhance potato production and tuber quality in areas suffering from water salinization. This article is protected by copyright. All rights reserved.

中文翻译:

盐渍条件下生熟马铃薯块茎农艺性状、酚类化合物及抗氧化活性

背景 马铃薯产量和块茎组成与植物为应对盐度所采用的机制有关,并且通常会在烹饪后发生变化。目前的研究旨在评估盐度、品种和烹饪方法对马铃薯块茎组成的影响。三种马铃薯品种(Spunta、Bellini 和阿拉斯加)在不同盐度下生长(T1:2.2 ms cm-1 EC,T2:电磁处理前 8.5 ms cm-1 EC,电磁处理后 6.3 ms cm-1 EC,T3:8.5 ms cm-1 EC) 进行了研究。评估了产量和块茎质量属性(淀粉、干物质、比重和块茎大小)。分析了生块茎和水煮块茎中的类胡萝卜素、通过 HPLC 测定的总酚类和单个酚类、相对抗氧化能力 (RAC) 和离子含量。结果 块茎产量、淀粉、干物质、离子和抗氧化剂受盐度水平和品种的显着影响。在T3下获得最少的产量和最高的抗氧化剂。抗氧化剂受烹饪方法、相互作用处理×烹饪方法和品种×烹饪方法的影响。由于槲皮素、咖啡酸和儿茶素在煮沸后显着减少,因此个别酚类化合物对煮食表现出不同的反应。然而,香豆酸在阿拉斯加块茎中增加。结论盐度水平、品种和烹调方法是块茎产量和组成的重要决定因素。电磁水可用于提高受盐碱化影响地区的马铃薯产量和块茎质量。本文受版权保护。版权所有。在T3下获得最少的产量和最高的抗氧化剂。抗氧化剂受烹饪方法、相互作用处理×烹饪方法和品种×烹饪方法的影响。由于槲皮素、咖啡酸和儿茶素在煮沸后显着减少,因此个别酚类化合物对煮食表现出不同的反应。然而,香豆酸在阿拉斯加块茎中增加。结论盐度水平、品种和烹调方法是块茎产量和组成的重要决定因素。电磁水可用于提高受盐碱化影响地区的马铃薯产量和块茎质量。本文受版权保护。版权所有。在T3下获得最少的产量和最高的抗氧化剂。抗氧化剂受烹饪方法、相互作用处理×烹饪方法和品种×烹饪方法的影响。由于槲皮素、咖啡酸和儿茶素在煮沸后显着减少,因此个别酚类化合物对煮食表现出不同的反应。然而,香豆酸在阿拉斯加块茎中增加。结论盐度水平、品种和烹调方法是块茎产量和组成的重要决定因素。电磁水可用于提高受盐碱化影响地区的马铃薯产量和块茎质量。本文受版权保护。版权所有。交互处理×烹饪方法和品种×烹饪方法。由于槲皮素、咖啡酸和儿茶素在煮沸后显着减少,因此个别酚类化合物对煮食表现出不同的反应。然而,香豆酸在阿拉斯加块茎中增加。结论盐度水平、品种和烹调方法是块茎产量和组成的重要决定因素。电磁水可用于提高受盐碱化影响地区的马铃薯产量和块茎质量。本文受版权保护。版权所有。交互处理×烹饪方法和品种×烹饪方法。由于槲皮素、咖啡酸和儿茶素在煮沸后显着减少,因此个别酚类化合物对煮食表现出不同的反应。然而,香豆酸在阿拉斯加块茎中增加。结论盐度水平、品种和烹调方法是块茎产量和组成的重要决定因素。电磁水可用于提高受盐碱化影响地区的马铃薯产量和块茎质量。本文受版权保护。版权所有。品种和烹饪方法是块茎产量和组成的重要决定因素。电磁水可用于提高受盐碱化影响地区的马铃薯产量和块茎质量。本文受版权保护。版权所有。品种和烹饪方法是块茎产量和组成的重要决定因素。电磁水可用于提高受盐碱化影响地区的马铃薯产量和块茎质量。本文受版权保护。版权所有。
更新日期:2020-04-29
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