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Influence of organic cultivation and sampling year on quality indexes of sweet pepper during 3 years of production
European Food Research and Technology ( IF 3.3 ) Pub Date : 2020-04-23 , DOI: 10.1007/s00217-020-03492-1
Roberto Lo Scalzo , Gabriele Campanelli , Dario Paolo , Marta Fibiani , Giulia Bianchi

Two genotypes of sweet pepper were studied regarding their profile of quality indexes related to yield, taste and healthy components. The peppers were grown with three different types of cultivation, one conventional (CONV) and two organic (ORG), in three harvest years, 2015, 2016, and 2017. The two genotypes belong to the typology "red long horn", comparing a local cultivar selected for organic production (RTV), against a commercial F1 hybrid (Alceste F1). The main quality indexes of sweet pepper were measured, considering yield, tastants such as sugars, organic acids, volatiles and phytochemicals such as ascorbic acid, carotenoids, and tocopherols. Moreover, the Folin–Ciocalteu and DPPH assays were performed to assess the total polyphenols content and the antioxidant capacity. The results indicated that the 3 years of harvest were different, with the summer of 2016 more rainy and less warm than others, and most significant differences among the samples were due to this factor. The data collection indicates that ORG fruits had significant higher agronomic yield and sugar content, while higher content of ascorbic acid, yellow carotenoids, and Folin–Ciocalteu index was found in 2016 with respect to 2015 and 2017, in accordance with the meteorological variations. Moreover, in 2016, some volatiles showed strong depletions in ORG vs CONV samples. In some cases, considerable differences between the genotypes were observed, due to the different adaptability to ORG conditions for RTV and to CONV conditions for Alceste F1. A high content of free sugars and ascorbic acid was found in RTV ORG, while high content of organic acids, carotenoids, and 2-methoxy-3-isobutyl pirazine was observed in Alceste F1 ORG.

中文翻译:

有机栽培和采样年限对甜椒生产3年质量指标的影响

研究了两种基因型甜椒的质量指标与产量,味道和健康成分有关。在三个收获年(2015年,2016年和2017年),辣椒以三种不同的栽培类型进行种植,一种是常规的(CONV),两种是有机的(ORG)。这两种基因型属于“红色长角”类型,针对商业F1杂种(Alceste F1)选择用于有机生产(RTV)的本地品种。测量了甜椒的主要质量指标,其中考虑了产量,调味剂(例如糖,有机酸,挥发物)和植物化学物质(例如抗坏血酸,类胡萝卜素和生育酚)。此外,还进行了Folin–Ciocalteu和DPPH分析,以评估总多酚含量和抗氧化能力。结果表明,3年收获不同,2016年夏季比其他年份多雨,少温暖,并且样品之间最显着的差异是由于这个因素。数据收集表明,根据气象变化,2016年相对于2015年和2017年,ORG水果的农艺产量和糖含量明显更高,而抗坏血酸,黄色类胡萝卜素和Folin-Ciocalteu指数的含量更高。此外,2016年,一些挥发性物质在ORG和CONV样品中显示出大量消耗。在某些情况下,由于对RTV的ORG条件和对Alceste F1的CONV条件的适应性不同,因此观察到的基因型之间存在相当大的差异。在RTV ORG中发现了高含量的游离糖和抗坏血酸,而高含量的有机酸,
更新日期:2020-04-23
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