百年蔗红糖营养品质的综合评价分析

Comprehensive Evaluation of Nutritional Quality of Centennial Cane Brown Sugar

摘要:

为探究百年蔗红糖的成分和营养品质，测定3批百年蔗红糖和14批市售红糖的理化指标、营养成分、活性成分及抗氧化活性，并结合熵权法逼近理想排序法（Technique for Order Preference by Similarity to Ideal Solution，TOPSIS）综合评价百年蔗红糖的营养价值。结果显示：百年蔗红糖中含有还原糖分（9.10%）、蛋白质（1.54 g/100 g）、脂肪（1.30 g/100 g）、13种氨基酸（0.87 g/100 g）、12种矿物质元素（19 812.84 mg/kg），其中人体必需氨基酸（0.16 g/100 g）及微量元素K（18 466.70 mg/kg）、Ca（629.33 mg/kg）、Fe（59.57 mg/kg）、Zn（12.18 mg/kg）含量均较高；总黄酮、总多酚活性成分含量3.69 mg/g、5.69 mg/g；抗氧化能力分析百年蔗红糖的半数清除率（Median Inhibition Concentration，IC50）为15.01~16.44 mg/mL，铁还原能力法（Ferric Reducing Antioxidant Power，FRAP）为0.053~0.063 mmol/g；熵权TPOSIS综合分析显示红糖S1、S8、S12综合营养品质较佳，可筛选为优质红糖。该研究通过构建熵权TOPSIS功能评价模型，综合评红糖的营养价值，以期为红糖深加工及药用保健功能的产品开发提供一定的参考。

Abstract:

To explore the composition and nutritional quality of the Centennial Cane brown sugar, the physicochemical indexes, nutritional constituents, active components and antioxidant activities of 3 batches of Centennial Cane brown sugar and 14 batches of commercially available brown sugar were determined. The nutritional value of Centennial Cane brown sugar was evaluated by the TOPSIS method. The results showed that the Centennial Cane brown sugar contained reducing sugar (9.10%), protein (1.54 g/100 g), fat (1.30 g/100 g), 13 amino acids (0.87 g/100 g) and 12 kinds of mineral elements (19 812.84 mg/kg). The contents of essential amino acids (0.16 g/100 g), and contents of trace elements, K (18 466.70 mg/kg), Ca (629.33 mg/kg), Fe (59.57 mg/kg) and Zn (12.18 mg/kg), were higher. The contents of total flavonoids and total polyphenols were 3.69 mg/g and 5.69 mg/g, respectively. The DPPH IC50 and FRAP values of the Centennial Cane brown sugar were 15.01~16.44 mg/mL and 0.053~0.063 mmol/g, respectively. The comprehensive analysis of entropy weight TPOSIS showed that the comprehensive nutritional quality of brown sugars S1, S8 and S12 were better and can be selected as high-quality brown sugars. In this study, the nutritional value of brown sugar was comprehensively evaluated by constructing the entropy weight TOPSIS function evaluation model, to provide certain reference for brown sugar deep processing and the development of medicinal health functional products.