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迷迭香天然活性成分的提取及其抑菌作用研究

發(fā)布時(shí)間:2018-05-24 07:19

  本文選題:迷迭香 + 提取; 參考:《內(nèi)蒙古農(nóng)業(yè)大學(xué)》2017年碩士論文


【摘要】:迷迭香(Rosmarinus officinaiis L.)是一種多年生草本植物,具有芳香的針狀葉。它原產(chǎn)于地中海地區(qū),并在許多其他地區(qū)種植。由于具有強(qiáng)烈的芳香氣味,迷迭香新鮮和干燥的葉子被廣泛用作與不同食品中的香料。他們的精油廣泛應(yīng)用于化妝品行業(yè),生產(chǎn)各種古龍香水,洗澡精華,頭發(fā)洗劑和洗滌劑,并且是消毒劑和殺蟲劑的組分。本研究主要研究結(jié)論如下:(1)通過單因素實(shí)驗(yàn)和正交實(shí)驗(yàn)分析發(fā)現(xiàn),迷迭香中迷迭香酸的最佳提取工藝為:即固液比為1:8,乙醇濃度為15%,超聲波提取功率為720W,超聲波提取溫度為55℃,迷迭香葉粉碎目數(shù)20目和超聲波提取時(shí)間為6min,此最佳條件下迷迭香酸有效提取率為97.3%。(2)α-蒎烯、莰烯、1,8-桉葉素和樟腦為優(yōu)勢(shì)化合物,其平均相對(duì)含量分別為9.1%、3.2%、57.7%和6.3%。且隨著季節(jié)的變化迷迭香提取液各物質(zhì)的成分也會(huì)隨之發(fā)生變化。(3)迷迭香提取液對(duì)不同的菌株抑制效果是有差異的,其中對(duì)runellavulgaris ATCC 6897、Escherichia coli ATCC 11230、Bacillus subtilis ATCC 6633 和 Canidia albicans ATCC 10239具有較強(qiáng)的抑制特性。采集自3月份的迷迭香自備的提取液抑菌作用最弱,季節(jié)因素對(duì)迷迭香提取液的抑菌作用具有顯著的影響。(4)以馬鈴薯變性淀粉為基膜主劑,研究添加迷迭香提取液復(fù)合膜對(duì)接種病斑直徑的影響,以期結(jié)合涂膜處理對(duì)香梨采后主要致腐病菌青霉菌(Penicillium expansum)引起的青霉病起到一定控制效果。通過試驗(yàn)發(fā)現(xiàn),迷迭香提取液復(fù)合膜能夠有效地抑制Penicillium expansum病斑直徑的擴(kuò)展。
[Abstract]:Rosmarinus officinaiis L. It is a perennial herb with aromatic needle-like leaves. It is native to the Mediterranean and is grown in many other areas. The fresh and dry leaves of rosemary are widely used as spices in different foods because of their strong aroma. Their essential oils are widely used in the cosmetics industry, producing cologne, bath essence, hair lotion and detergents, as well as disinfectants and insecticides. The main conclusions of this study are as follows: (1) through single factor experiments and orthogonal experiments, we find that, The optimum extraction technology of rosemary acid from rosemary is as follows: the ratio of solid to liquid is 1: 8, the concentration of ethanol is 15, the power of ultrasonic extraction is 720W, and the temperature of ultrasonic extraction is 55 鈩,

本文編號(hào):1928188

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