大学毕业论文—灰树花多糖的提取及其水提物的抑菌论文.doc

灰树花多糖的提取及其水提物的抑菌 摘 要 近年来随着国家经济的发展及生活水平的提高，食、药兼用具有很好的保健作用和很高的药用价值β-（1→6β-（1→3）。、、。86.5%，32%。 ℃、料液比80:1、的单因子条件下最80℃、0:1、h，提取率达到7.94％。（0.3%）（75%）1:2）、青霉素（）8.15mm、10.24mm、12.65mm、9.22mm、7.96mm、12.91mm、13.21mm、10.79mm、8.58mm、12.53mm、14.4mm、11.21mm。，，、。，(glucan)为主，β-(1，3)-(Lentinan，PSK,)、PSP)等有更强的抗癌能力。据专家评价，灰树花具有防癌、抗癌，抗衰老、、，、、。“食用菌王子”之美称，。；；；In recent years, as the countrys economic development and the improvement of living standards, people are increasingly concerned about green and healthy food, and Grifola frondosa as a food, medicine used along with fungi, with good health care and high medicinal value. The main active ingredient is Grifola frondosa proteoglycans, dextran polysaccharide component in order mainly to a β-(1 → 6) branches of the β-(1 → 3) glucan as the basic structure, containing a small amount of xylose and mannose. The results show that grifolan primarily by enhancing immune function and exert its anti-tumor effect, at the gene level, the product has a strong resistance to chemical mutagenesis can be used for chronic hepatitis B and after cancer chemotherapy fatigue, leukopenia, decreased immune function of comprehensive treatment and prevention of AIDS have a role. Clinically grifolan orally active, safe and non-toxic. Polysaccharide with anti-tumor, anti-high blood pressure, lower blood sugar, anti-obesity, anti-hepatitis efficacy. According to the American Hospital specializes in the treatment of some cancers spot experiments show that the chemical treatment of cancer at the same time, with the inhibition of cancer cell grifolan even more effects than chemotherapy alone. Japanese medical experts with in vivo antitumor grifolan test results show that the inhibition rate grifolan up 86.5%, compared with the international certification of new anticancer drugs inhibit the rate of lentinan 32%. Through experiments, the temperature, solid-liquid ratio, extraction time, single factor experiment and orthogonal experiment to extract Polysaccharide optim