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臺灣水果維他命C含量之測定

The Ascorbic Acid Contents of Taiwan Fruits

Abstracts


分析省產約五十種水果與嘉義分所引進之稀有熱帶果樹果實之果肉或果汁之維他命C含量、酸度及糖度值。其中維他命C含量最高者爲西印度櫻桃(695-2134mg/100g),其次爲番石榴白拔品種(含量最高可達436mg/100g)。其它如木瓜、龍眼、獮猴桃、草莓、柚子、柑橘類、印度棗、楊桃、荔技、檬果、釋迦、錫蘭醋栗、白柿等水果,維他命C含量大多超過30mg/100g。不過,同種類的水果,維他命C含量往往因品種不同而有顯著差異。 未熟或過熟的水果維他命C含量均較成熟度好的水果低。需要後熟軟化的水果也以水果在催熟或自然後熟軟化後含有較高的維他命C含量。但水果若過度軟化,質地崩解,維他命C含量也會急遽降低。再者,維他命C含量多寡,亦因採收時之果實成熟度不同而有差異,愈接近成熟期採收的水果維他命C含量愈高。 一般而言水果食味品質佳時,維他命C含量也較高。

Keywords

水果 維他命C

Parallel abstracts


About fifty kinds of native fruit in Taiwan had been selected to analyze their ascorbic acid contents, total soluble solids and titratable acidity in the edible parts or juice. Among these fruit. West Indian Cherry (Acerola) had highest ascorbic acid contents (695-2134m g/100g) and then guava, contained ascorbic acid up to 436mg/100g. The other fruits, such as papaya, longan, kiwifruit, strawberry, pummelo, shaddock, Indian jujube, sweet orange, grapefruit, carambola, lemon, litchi, mango, sugar apple, Ceylon gooseberry, white sapote had ascorbic acid content over 30mg/100g. The difference-in the contents of ascorbic acid is usually significant among the different varieties The ascorbic acid content of immatured and over matured fruits were less than the matured fruit. If harvest time is closer to the maturity of fruit, the concentration of ascorbic acid in fresh fruit is also consistently higher. In general, the tasting quality of fruit is positively consistent with the contents of ascorbic acid.

Parallel keywords

fruit Ascorbic acid

Cited by


陳家鴻(2008)。‘玉荷苞’及‘黑葉’荔枝果實採收後生理及保鮮技術之研究〔碩士論文,國立屏東科技大學〕。華藝線上圖書館。https://doi.org/10.6346/NPUST.2008.00070
陳盈綾(2015)。後熟作用與厭氧發酵對三種栽培諾麗果機能性成分及生物活性之影響〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2015.00865
劉育昌(2013)。‘珍珠拔’番石榴後熟特性與系統II ACC合成酶PgACS1基因表現之研究〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2013.00014
鄭又瑄(2011)。以氧自由基吸收能力法(ORAC)及FC試劑還原能力法(FCR)分析國內蔬菜之抗氧化能力〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2011.01866
陳易徵(2009)。不同熟度‘珍珠拔’番石榴及‘台農二號’番木瓜果實之抗氧化力〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2009.01687

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