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題名 | 浸漬條件對桑椹再製酒色澤安定性之影響=Color Stability of Mulberry Liqueur as Affected by Maceration Conditions |
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作者 | 吳良哲; 許明仁; 戴三堡; | 書刊名 | 臺灣園藝 |
卷期 | 52:1 民95.03 |
頁次 | 頁107-116 |
分類號 | 463.815 |
關鍵詞 | 桑椹再製酒; 花青素; 浸漬; 色澤安定; 共呈色; Mulberry liqueur; Anthocyanin; Maceration; Color stability; Copigmentation; |
語文 | 中文(Chinese) |
中文摘要 | 不同糖類及添加量的桑椹再製酒中,以添加 12.5% 葡萄糖的桑椹再製酒具有最高的可滴定酸、縮合單寧與總花青素萃出量,且在浸漬潰萃取 14 週後保有最低的色度比 (Tint value),呈現最佳的紅色色澤。隨著糖添加量的增加,桑椹成分在再製酒中的溶出明顯受到抑制而降低。以澄清桑椹汁添加 40% 酒精度之基酒的試驗結果顯示,隨著貯藏時間增長,再製酒的色度比增加,酒中之縮合單寧與總花青素含量則同時下降,且有微量沉澱之生成,這些沉澱物可能是縮合單寧與花青素聚合導致溶解度下降所致。以 60% 酒精含量之基酒製造桑椹再製酒溶出最多之可滴定酸、總酚、縮合單寧與總花青素,且浸漬萃取至第 14 週時之酒液色度比亦較其他不同酒精度之基酒製造之樣品低,紅色色澤的呈現最佳。在桑椹再製酒製造時添加不同的共色素(copigment),以添加 500 mg/L catechin 的酒液在浸漬萃取第 14 週時的總花青素含量最高且色度比最低,可提高桑椹再製酒的色澤安定性。 |
英文摘要 | Color is one of the most important quality factors for mulberry liqueur. The objective of this study is to investigate the additions of sugar, quantity of sugar, alcohol concentration of base liquor, and copigment on the color stability of mulberry liqueur during maceration. The results show that mulberry liqueurs with 12.5% glucose addition elute the highest titratable acidity, condensed tannins and total anthocyanins contents among samples. In addition, tint value of 12.5% glucose added mulberry liqueur sample is the lowest among the samples after maceration for 14 weeks, which displayed the best red color appearance. Increase quantity of sugar added to mulberry liqueur significantly inhibits solute elution during maceration. Addition of clarified mulberry juice directly to 40% alcohol liquor, the condensed tannins and total anthocyanins contents decreased as tint value increased. Precipitation observed in this sample is probably due to the polymerization of tannin and anthocyanin which resulted in solubility reduction. Mulberry liqueurs made from 60% alcohol maceration resulted in the highest titratable acidity, total phenols, condensed tannins and total anthocyanins contents extraction, as compared to mulberry macerated with other lower alcohol content base liquor. At the end of 14 weeks maceration, the mulberry liqueurs made from 60% alcohol had the lowest tint value, which also displayed the best red color among the treatments. Addition of 500mg/L catechin as copigment into the mulberry liqueur maceration resulted in the highest total anthocyanins extraction and the liqueur also presents the lowest tint value as compared to the addition of other copigments, which suggests that addition of 500mg/L catechin may increase the color stability of mulberry liqueur. |
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