|關鍵字： 柚；pomelo；呋喃香豆素；furanocoumarins；營養成分；nutrition；抗氧化能力；antioxidant capacity；葡萄柚；grapefruit
|摘要： 呋喃香豆素為柑橘果實之次級代謝產物，為有機化合物亞類之一，其具有多種生理作用，其中與人體代謝症候群藥物的相互作用而影響療效，導致病患不適。因國際上研究證實葡萄柚中含有大量呋喃香豆素，具影響藥物代謝之疑慮，易造成消費者認為所有柚類均有類似作用，而造成食用上安全疑慮，為釐清消費者對於台灣柚類食用上之安全疑慮，接續前一年計畫，持續分析其他不同柚類與葡萄柚呋喃香豆素成分及含量、營養成分和抗氧化能力，並進一步分析不同產區、採收時期及採收成熟度文旦柚之呋喃香豆素成分及含量、營養成分和抗氧化能力，後比較台灣柚類與葡萄柚之差異，釐清種類及品種差異，及透過分析歸納文旦柚呋喃香豆素與產區氣候條件、採收時期及採收成熟度之相關性，歸納降低文旦柚呋喃香豆素之方法。 台灣柚類於市場上主要消費目的為中秋過節為大宗，且產期集中於中秋節前後1-2個月內，因此於中秋節前後價格價差極大之問題，易發生產量過剩，造成市場上供過於求，產銷失衡。因此本計畫擬分析台灣柚類與葡萄柚營養成分與抗氧化能力等健康指數，並以此製作台灣柚類營養宣傳單，推廣台灣柚類營養價值，以期增加消費者對台灣柚類之營養成分認知與購買意願，提高產品附加價值，並建立外銷貯運流程，增加外銷量，調節市場供需。Furanocoumarin is a secondary metabolite in citrus fruits and is one of the subclasses of organic compounds. It has a variety of physiological functions, and may interact with human metabolic syndrome drugs to affect drugs' efficacy and lead to patient discomfort. Many international studies have confirmed that grapefruit contains a large amount of furanocoumarin, which may affect drug metabolism. Consumers are prone to think that pomelo may have the similar effect which results in food safety concerns. In order to address consumers' concerns regarding the safety of pomelo in Taiwan, following the results of the previous year, furanocoumarin composition and content, nutritional composition and antioxidant capacity will be analyzed in different varieties of pomelo and grapefruit. Furthermore, furanocoumarin composition and content, nutritional composition and antioxidant capacity will be analyzed in Wendan pomelo harvested at different production areas, times, and maturity. Then, the difference between Taiwan pomelo and grapefruit, and the species and variety differences will be clarified. Through correlation analysis between furocoumarins in Wendan pomelo and climatic conditions in the production, harvesting time and harvesting maturity, a method for reducing of Wendan pomelo furocoumarins in will be induced. The main consumption of Pomelo in Taiwan is during the Mid-Autumn Festival. Pomelo production period in Taiwan is concentrated at 1-2 months before and after the Mid-Autumn Festival. The price fluctation is extremely large around the Mid-Autumn Festival. Overproduction results in oversupply in the market is oten seen in Taiwan. This study aims to analyze the nutritional composition and antioxidant capacity of pomelo and grapefruit in Taiwan, and use the data thus obtained to make a nutrition leaflet for pomelo in Taiwan, to promote the nutritional value of pomelo inTaiwan, to increase consumers' knowledge about the nutritional content of pomelo in Taiwan and their willingness to purchase, to increase the added value of pomelo in Taiwan, to increase pomelo export, to establish the processes of pomelo storage and transport, and to regulate market supply and demand of pomelo in Taiwan.