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| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘 要:目前，蒙自地區(qū)的石榴種植面積已達(dá)7.9萬畝，已成為全國石榴主產(chǎn)區(qū)之一，產(chǎn)量達(dá)6萬噸。蒙自石榴不管在種植面積還是品質(zhì)上都是處于全國領(lǐng)先的地位，但是蒙自石榴主要用于鮮食，深加工工藝還未形成。本文采用超聲波輔助乙醇為提取劑從石榴皮中提取抗氧化物進(jìn)行了研究。通過單因素實(shí)驗(yàn)對(duì)石榴皮粉末顆粒大小、乙醇濃度、料液比與超聲提取時(shí)間對(duì)石榴皮提取物抗氧化性能的影響進(jìn)行了研究，并通過正交實(shí)驗(yàn)及FRAP實(shí)驗(yàn)找到石榴皮乙醇提取物抗氧化性最優(yōu)的一個(gè)條件：過5號(hào)篩（80目）、70%乙醇、超聲時(shí)間為30min、料液比1:20時(shí)，其硫酸亞鐵含量為140.79umol/L、總黃酮含量為2.461mg/g,總多酚含量為14.322mg/g。對(duì)豬油抗氧化性研究實(shí)驗(yàn)比較石榴皮干粉乙醇提取物與其他抗氧化劑（VC、VE）的抗氧化性差異得出1mg石榴皮乙醇提取物抗氧化活性相當(dāng)于同等條件下0.93mg的維生素C或者相當(dāng)于同等條件下0.85mg的維生素E。通過對(duì)石榴皮乙醇提取物抗氧化性能的研究，為蒙自石榴的綜合開發(fā)利用提供有利的實(shí)驗(yàn)基礎(chǔ)研究和基本理論支持。 關(guān)鍵詞：石榴皮；抗氧化；抗氧化實(shí)驗(yàn)
ABSTRACT:At present, the planting area of Mongolian areas pomegranates has reached 7.9 million acres, has become one of the main production of pomegranates, six million tons. Mengzi pomegranate whether in the planting area or quality is our leading position in China, but mainly used for fresh food, Mongolian pomegranate processing technology is not formed. This paper ultrasonic extraction agents from auxiliary ethanol extract antioxidants pomegranate husk were studied. Through the single factor experiment on the pomegranate husk powder particle size, ethanol concentration, with liquid materials of ultrasonic extraction time than pomegranate husk extract the influence of antioxidant properties were studied by orthogonal experiment and and pomegranate husk FRAP experiment find ethanol extracts oxidation resistance optimal one condition: 5 screen (80 mesh), 70% ethanol, ultrasonic time than for 30min, liquid materials, its ferrous sulfate as content of 140.79 umol/L flavonoids content is 2.461 mg/g, total polyphenol content is 14.322 mg/g. To lard oxidation resistance research experimental comparison ethanol extracts pomegranate husk powder with other antioxidants (VC, VE) antioxidant sexual difference that pomegranate husk 1mg ethanol extracts antioxidant activity, under the same condition 0.93mg equivalent of mg in vitamin C or equivalent of mg, under the same condition 0.85mg vitamin E. Through ethanol extracts for the pomegranate husk antioxidant properties of research, to the comprehensive exploitation and utilization of Mongolian pomegranate provide favorable experimental basic research and basic theoretical support. Key words: The pome granate; Antioxidant; Antioxidant experiment |
