Physical and Chemical Properties of Pekmez (Molasses) Produced with Different Grape Cultivars

4区农林科学

Tarim Bilimleri Dergisi-journal of Agricultural Sciences Pub Date : 2016-08-25 DOI:10.1501/TARIMBIL_0000001392

C. Türkben, S. Suna, Gokcen Izli, V. Uylaşer, C. Demir

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引用次数: 10

Abstract

In this study, some physical and chemical properties of pekmez samples produced using the traditional method with fourteen different grape cultivars were investigated. The water-soluble dry matter, pH, titratable acidity and hydroxymethylfurfural (HMF) content of the samples were determined to be 66.19-80.57%, 3.59-5.23, 0.27-1.81 g 100 g-1 and 5.93-762.22 mg kg-1, respectively. The mean fructose and glucose contents of the pekmez samples were determined to be 28.42 g 100 g-1 and 31.67 g 100 g-1, respectively. The densities and electrical conductivities varied between 1.33-1.43 g cm-3 and 1.96-4.51 mS cm-1, respectively. The content of the macro element K identified in the pekmez samples (4449.86 mg kg-1) was greater than that of Ca (1275.52 mg kg-1), P (369.96 mg kg-1), Mg (344.79 mg kg-1) and Na (119.56 mg kg-1). The pekmez samples have antioxidant activities, ranging between 38.20 to 64.45 μmol TE g-1. Six phenolic compounds, caffeic acid, ellagic acid, ferulic acid, gallic acid, p-coumaric acid and rutin hydrate, were identified in the pekmez samples, and significant differences were observed between samples (P<0.01).

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不同葡萄品种生产糖蜜的理化性质

本研究以14个不同葡萄品种为原料，对传统方法制备的pekmez样品进行了理化性质研究。测定样品的水溶性干物质、pH、可滴定酸度和羟甲基糠醛(HMF)含量分别为66.19 ~ 80.57%、3.59 ~ 5.23、0.27 ~ 1.81 g 100 g-1和5.93 ~ 762.22 mg kg-1。pekmez样品中果糖和葡萄糖的平均含量分别为28.42 g 100 g-1和31.67 g 100 g-1。密度和电导率分别在1.33 ~ 1.43 g cm-3和1.96 ~ 4.51 mS cm-1之间变化。pekmez样品中微量元素K (4449.86 mg kg-1)的含量高于Ca (1275.52 mg kg-1)、P (369.96 mg kg-1)、mg (344.79 mg kg-1)和Na (119.56 mg kg-1)。pekmez样品的抗氧化活性在38.20 ~ 64.45 μmol TE g-1之间。pekmez样品中检出咖啡酸、鞣花酸、阿魏酸、没食子酸、对香豆酸和水合芦丁6种酚类化合物，样品间差异显著(P<0.01)。

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来源期刊

Tarim Bilimleri Dergisi-journal of Agricultural Sciences 农林科学-农业综合

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Journal of Agricultural Sciences (JAS) is an international, double-blind peer-reviewed, open-access journal, published by the Faculty of Agriculture, Ankara University. The journal invites original research papers containing new insight into any aspect of Agricultural Sciences that are not published or not being considered for publication elsewhere. Preliminary, confirmatory or inconclusive research, review articles, case and local studies and works presenting taxonomy will not be published.