野生玫瑰两个品系果实品质特性的比较分析与评价

发布时间：2018-03-05 15:20

  本文选题：野生玫瑰果　切入点：品系　出处：《延边大学》2017年硕士论文　论文类型：学位论文

【摘要】：本研究选取两个品系野生玫瑰果为实验材料,对其果实性状、色泽属性、质构特性、营养成分及抗氧化能力进行了测定与分析,目的在于了解两个品系野生玫瑰果实天然的品质特性,以及两个品系果实内在品质和外观品质之间的差异,为野生玫瑰优良品种的选育及其开发利用前景提供理论依据。结果表明:1、野生玫瑰果两个品系外在品质的分析(1)HCMG-A、HCMG-B两个品系野生玫瑰果实成熟时平均单果重均在8g以上;可食率为75%～82%、82%～85%范围内,种子百分率为11%～17%、10%～13%,是开发食品的良好材料;果形指数均在0.71～0.88之间,果实为扁球形或圆盘形。(2)野生玫瑰HCMG-A、HCMG-B两个品系果实L*、a*、b*值均较高,其中a*值显示出红色度是野生玫瑰的特征属性。(3)HCMG-A、HCMG-B两个品系的果实硬度远低于常见鲜食果蔬的硬度,软化较快,不适宜常温保存。2、野生玫瑰果两个品系营养成分和生物活性成分的分析(1)HCMG-A、HCMG-B两个品系糖酸比分别为8:1、9:1,口感酸甜适中,可以作为鲜食资源;其中果胶含量在成熟期为2.25%和1.36%,适合加工成果酱等产品。(2)HCMG-A、HCMG-B两个品系氨基酸积累量均在8月初达到最高,应该为最适采收期;同时含有丰富的呈味氨基酸、婴幼儿必需氨基酸和药用氨基酸,是一种良好的药食同源的优质原料。(3)HCMG-A、HCMG-B两个品系含有18种矿物质元素,其中包含3种大量元素和15种微量元素,有利于调节人体生理功能。(4)HCMG-A、HCMG-B两个品系野生玫瑰果Vc含量在成熟阶段达到768.880 mg/100g和898.113mg/100g,可作为保健产品的有利资源。从果皮、果肉、整果这三个方面来看,番茄红素含量大小为果皮整果果肉;β-胡萝卜素的排列顺为整果果皮果肉。3、野生玫瑰果两个品系抗氧化能力的分析从DPPH自由基清除能力、还原力和总抗氧化能力这3个指标来看,HCMG-A品系的抗氧化能力高于HCMG-B品系;从羟自由基清除能力和超氧阴离子清除能力看,HCMG-B品系抗氧化能力高于HCMG-A品系。
[Abstract]:In this study, two wild rose fruits were selected as experimental materials, and their fruit characters, color and color properties, texture characteristics, nutritional components and antioxidant capacity were determined and analyzed. The purpose of this study was to understand the natural quality characteristics of the wild rose fruits and the differences between the internal and external qualities of the two varieties. The results showed that the average fruit weight of two wild rose cultivars was more than 8 g when they matured. Within the range of 85% of the edible rate, the percentage of seeds was 11% and 17% and 1013%, which was a good material for food development. The fruit shape index was between 0.71 and 0.88, and the fruit was flat globular or disk-shaped. The fruit value of the wild rose, HCMG-AHCMG-B, was higher than that of the wild rose (LMG-AHCMG-B). The value of a * showed that the red degree was the characteristic attribute of wild rose. The fruit hardness of the two lines was much lower than that of the common fresh fruits and vegetables, and the softening was faster than that of common fresh fruits and vegetables, and the fruit hardness of the two lines was much lower than that of the common fresh fruits and vegetables. Analysis of nutrient and Bioactive components of two Wild Rosa Rosa cultivars under normal temperature the ratio of sugar to acid of two lines of HCMG-A and HCMG-B was 8: 1 / 9: 1, which was moderate in taste and sweet, and could be used as a fresh food resource. The pectin content was 2.25% and 1.36 in the mature stage, which was suitable for processing into jam and other products. The amino acid accumulation of the two strains reached the highest level in early August, which should be the optimum harvest period, and it contained abundant flavor amino acids. The essential amino acids and medicinal amino acids of infants and young children are high quality raw materials of good medicinal and food homology. The two strains of HCMG-AHMG-B contain 18 mineral elements, including 3 kinds of large amounts of elements and 15 kinds of trace elements. The vitamin C content of wild rose fruit of two lines, HCMG-Agna HCMG-B, is 768.880 mg/100g and 898.113 mg / 100g in mature stage, which can be used as a favorable resource for health care products. From the three aspects of pericarp, pulp and whole fruit, The contents of lycopene and 尾 -carotene were determined to be whole pericarp and pulp respectively, and the order of 尾 -carotene was. 3. The antioxidant ability of two wild rose cultivars was analyzed from DPPH free radical scavenging ability. The antioxidation ability of HCMG-A strain was higher than that of HCMG-B strain, and the antioxidant ability of HCMG-B strain was higher than that of HCMG-A strain according to hydroxyl radical scavenging ability and superoxide anion scavenging ability.
【学位授予单位】：延边大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TS255.1;S685.12
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本文编号：1570794