惡地環境中葛鬱金之營養成分分析
URL: https://thesis.lib.ncku.edu.tw/thesis/detail/c3a516630ddd4bc6ff237b2c180b3a1f/?seq=1
臺灣農村面臨青壯年外移導致人口老化現象,針對農村人口流失臺灣政府從過去的農村再生、至今的地方創生策略,皆是希望吸引年輕人回流農村,以「均衡城鄉」為目標而進行著;台南左鎮公舘社區正是典型農村老化、處於經濟弱勢情形,另外也具備西南惡地特殊條件的區域。其中惡地土壤鹽鹼性高,又因土壤膠結性及透水度等物理性質,再加上豐枯水期水量差異等等,對於生長的植物而言為複合性之逆境,讓農村經濟發展造成許多侷限。
左鎮地區有香蕉、芒果、竹子等農產品,其中葛鬱金為一傳統且地方特色的農作物,多以同太白粉調理方式食用,葛鬱金為地下莖作物,在遇到逆境時可能會出現不同的營養成分,本研究藉由探討惡地造成葛鬱金的成分差異的方式,深入了解葛鬱金並提供未來相關產品開發,同時促成社區瞭解地方特色及其優劣勢,並鼓勵其結合循環經濟概念與農業模式、提升經濟受益和食品健康安全,進一步地實踐聯合國永續發展目標(SDGs)。
本研究的提問包含葛鬱金與市售太白粉間、葛鬱金鮮食與粉劑、不同環境中的營養成分分析和居民口述作用驗證之特殊成分為何?存在甚麼信息值得關注並提供未來怎麼樣的發展機會?透過十四項大營養成分檢測、B群及葉酸檢驗等等試圖找出解答。檢驗結果顯示各項成分明顯差異:葛鬱金粉與市售太白粉間為膳食纖維、鐵以及鉀;葛鬱金鮮食與粉劑間為膳食纖維、糖和鉀;不同環境中為鐵;特殊成分採檢的項目是維生素B1、維生素B2、維生素B6及維生素B9(葉酸),結果則是維生素B2及維生素B6。
葛鬱金製粉過程中產生的廢棄物有清洗水和渣、渣目前被當作堆肥使用,本研究檢驗發現雖然葛鬱金鮮食較粉劑有更多營養成分,但是生鮮葛鬱金在保存上仍具挑戰,因此當前將葛鬱金製粉是更實際的產品模式,而葛鬱金製粉過程所產生之廢棄物是否含有流失的營養成分,又有沒有能夠提升廢棄物價值的方法,皆是未來可以多加探討的部分;另外除了在逆境中的葛鬱金變化外,參考國外文獻後發現同是地下莖作物的馬鈴薯在遭遇逆境時鉀含量高有助於度過,跟惡地環境中葛鬱金的營養成分不大相同,可能是有不同之生理作用,他種植物遭遇逆境的應對措施則包括鉀跟鈣,與葛鬱金重疊的成分便是鈣,由營養成分看來,惡地環境對於葛鬱金而言確實也是逆境。
葛鬱金的未來研究可以朝向作物選育種、農業循環經濟、相關產品之開發等方向前進,在過去一直持續被使用卻沒有知名度的植物,其基礎資料需要更多研究去理解,另一方面在惡地所生長的葛鬱金,因為營養成分上的特殊性也值得被關注,尤其若能藉由吸引更多人對葛鬱金感興趣並開始使用,本研究對於健康層面的效益也有拓展至社會層面效益之可能性。
Rural areas in Taiwan are facing the migration of young and middle-aged people, leading to aging of its local populations. In Zuozhen, the local community struggles with the poor conditions of their southwestern areas, where soil is high in salt and alkali, and so unsuitable for growth of most plants. Thus, combining multiple factors leads to economic development has caused many limitations. Maranta arundinacea is a traditional crop with local characteristics. It is an underground stem crop, and different nutrients may appear when encountering adversity. We explores the ways in which the badlands cause the compositional differences of arrowroot, promotes the development of related products. The community understands local characteristics about advantages and disadvantages of arrowroot, encourages them to search the agricultural models they need, improve economic benefits and food health and safety, further implement the United Nations Sustainable Development Goals (SDGs). The results show that there are obvious differences in various ingredients. arrowroot flour and commercially available starch are significant difference in dietary fiber, iron and potassium. Fresh food and arrowroot flour are significant difference in dietary fiber, sugar and potassium. In different environments are significant difference in iron. Other ingredients show difference in vitamin B2 and vitamin B6. Arrowroot grows in the bad land is worthy of attention because of the particularity of nutrients, especially if it can attract more people to be interested in arrowroot and start using it, the benefits of this research on the health level may also be extended to the social level benefits.
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Last updated | May 5, 2022 |
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Created | May 5, 2022 |
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License | CC-BY-NC-SA 4.0 |