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1、福建農(nóng)林大學課程論文目錄1.摘要````````````````````````````````````````````````````````````````````````````````````````12.關鍵詞`````````````````````````````````````````````````````````````````````````````````````13.引言```````````````````````````````````````````````````````````````````````
2、`````````````````14.正文4.1果蔬罐頭的分類及原料4.1.1分類``````````````````````````````````````````````````````````````````````````````14.1.2果蔬原料的特點```````````````````````````````````````````````````````````````24.1.3果蔬原料的預處理````````````````````````````````````````````````````````````2
3、4.1.4原料的熱燙與漂洗````````````````````````````````````````````````````````````34.1.4原料的抽空處理```````````````````````````````````````````````````````````````44.2糖水水果罐頭加工工藝及品質控制4.2.1基本工藝流程``````````````````````````````````````````````````````````````````44.2.2糖水的配制```````````````
4、``````````````````````````````````````````````````````44.2.3水果罐頭的變色及其阻止措施`````````````````````````````````````````````54.3蔬菜罐頭加工工藝及品質控制5.結論`````````````````````````````````````````````````````````````````````````````````````````76.參考文獻````````````````````````````````````
5、```````````````````````````````````````````````77.致謝`````````````````````````````````````````````````````````````````````````````````````````99福建農(nóng)林大學課程論文果蔬罐頭的制作工藝摘要:罐頭加工技術是由尼克拉阿貝爾在18世紀發(fā)明的,后來很快傳到歐洲各國。罐頭生產(chǎn)在19世紀才傳入我國,而且舊中國處于內(nèi)外傾軋,因此我國罐頭工業(yè)受到嚴重摧殘。解放后,我國的罐頭工業(yè)在總產(chǎn)量與種類等方面有了迅速的發(fā)展。果
6、蔬罐頭就是果蔬原料經(jīng)過前處理后,裝入密封的容器內(nèi),在進行排氣、密封、殺菌,最好支持別具風味,能長期保持的食品。罐頭食品具有耐貯藏,易攜帶,品種多,食用衛(wèi)生的特點。果蔬罐頭以用料不同而命名不同,一般水果罐頭的原料取材于水果和蔬菜,包括黃桃,蘋果,荔枝,草莓,山楂等。產(chǎn)品主要有黃桃罐頭、草莓罐頭、橘子罐頭等。關鍵詞:罐頭加工;果蔬;果蔬罐頭;制作工藝Key?words:Cannedprocessing;Fruitandvegetable;Cannedfruitandvegetable;Productionprocess引言果蔬加工是以新鮮的
7、果品為原料,根據(jù)它們的理化性質,采用不同的加工工藝制成各種制品,這一系列過程.即稱之為果蔬加工.食品罐藏就是將食品密封在容器中,經(jīng)過高溫處理,將絕大部分微生物消滅,同時在防止外界微生物再次侵入的條件下,借以獲得在室溫的條件下,長期貯藏的一種保藏的方法。凡是用密封容器包裝,并經(jīng)過高溫殺菌的食品均稱為罐頭食品。在生活中,大多數(shù)消費者認為,動物性食品剛剛宰殺的就是新鮮,植物性食品剛剛采摘的則為新鮮,經(jīng)過加工儲藏的這些食品就失去了其“鮮活”,果蔬罐頭可能趕不上市場上水靈靈的水果,但評判食品鮮度最權威的憑據(jù)是看果蔬中原有營養(yǎng)素的保持程度,任何蔬菜
8、、水果在采摘后都仍在繼續(xù)“呼吸”,一些營養(yǎng)素開始不斷減少,蔬菜瓜果經(jīng)過采摘,長時間運輸、存儲,再擺放到農(nóng)貿(mào)市場或超市,即便外觀保存完好,都不能稱之為新鮮。要說新鮮,只有從樹上現(xiàn)摘現(xiàn)吃的水果才是最新鮮的?! ?/p>