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101.
香蕉皮脂肪酸的提取及GC-MS分析 总被引:3,自引:1,他引:2
为了给香蕉皮变废为宝加以更广泛利用提供科学依据,以提取过挥发油后的香蕉皮为材料,利用索氏提取法提取脂肪酸。并利用气相色谱质谱联用法鉴定出了21种成分及各种成分的相对含量。结果表明,香蕉皮脂肪酸中十六碳酸(Hexadecanoic acid)的含量最高,为45.90%,2种必需脂肪酸a-亚麻酸((Z,Z,Z)-9,12,15-octadecatrienoic acid)和亚油酸((Z,Z)-9,12-octadecadienoic acid)的含量分别为20.75%和19.56%。 相似文献
102.
《Plant Production Science》2013,16(4):392-397
abstractThe effects of various carbon sources, sucrose, glucose and fructose alone or in combination on the in vitro growth of banana plantlets were studied. Banana plants were cultured on the media supplemented with these carbon sources at 0.08 M for 13 weeks. The water potential of the medium was the highest in the medium supplemented with sucrose + glucose (-0.3 MPa), and was significantly lower in the medium supplemented with fructose alone or in combination with other carbon sources (-0.7 to -1.0 MPa) than in the other media. The leaf water potential was also the highest in the plants cultured on the medium supplemented with sucrose + glucose, and lowest in the plants cultured on that with fructose. The leaf water potential of plants cultured on sucrose + glucose, sucrose and glucose correlated well with their growth and photosynthetic activity, but the correlation was not observed in the plants cultured on fructose alone or in combination with other carbon sources. Plants cultured on fructose had a lower chlorophyll content (400 ptg dm-2) and lower photosynthetic rate (3 μmol02 m-2 s-1) than those cultured on sucrose + glucose (15,950 μgdm-2 for chlorophyll and 8.5 μmol02 m-2 s-1 for photosynthesis), and these differences were statistically significant. Both chlorophyll content and photosynthetic oxygen evolution were the highest in the plants cultured on sucrose + glucose, and the superior growth of plants on this medium was attributed to their high photosynthetic efficiency. 相似文献
103.
采用毛细管柱气相色谱法测定香蕉果实采后成熟期的乙烯释放量,以外标法峰面积定量,以保留时间定性,乙烯测定结果相对标准偏差(RSD)为1.85%,检出限为0.062 μL/L.该气相色谱法测定香蕉乙烯释放量和生成速率具有快捷高效、灵敏度高、重复性好、结果理想等优点.香蕉果实采后不同成熟处理条件下的乙烯释放量跟踪测量中,不同成熟度的香蕉乙烯释放量变化趋势明显,外源乙烯诱导时乙烯释放量提前达到峰值,1-MCP处理下的乙烯释放量只维持在很低水平. 相似文献
104.
Banana fruit are typically harvested at a green preclimacteric stage prior to sale. The green life (GL), which is defined as the number of days between harvesting and initiation of the natural ripening process, is important for harvesting, shipping and marketing. Sigatoka disease (SD) has previously been shown to influence the postharvest quality of banana fruit. The present study was conducted to determine (1) whether there is a relationship between the level of SD severity and the banana quality as characterized by several pomological traits and fruit green life, and (2) whether there is a level of SD severity that is acceptable for fruit exporting. In an experiment conducted with fruit harvested at a constant physiological age, our results showed that the disease decreases fruit GL. Based on the relationship established between SD severity and GL, it is possible to define an acceptable disease level threshold corresponding to a specified GL. Additionally, we found that high SD infections caused a reduction in fruit weight but did not affect fruit size. Possible explanations are discussed. 相似文献
105.
106.
A wild mushroom found on banana pseudo-stem sheath was isolated, and was identified as Volvariella volvacea based on both morphological and molecular characteristics. The mycelia of wild strain grew on banana leaves better than on other raw materials. Furthermore the wild strain could produce fruit bodies on banana leaves with a biological efficiency of 26.4%, on rice straw with 23.76% and on pseudo-stem sheath with 17.11% by a method that involves using non-pasteurized materials. This result indicates that it is very important for the utilization of banana wastes to produce mushroom by cultivating the wild strain. 相似文献
107.
108.
Yunchuan MO Yingyi DENG Xu ZHENG Yixin YE Ganhui MO Minzheng WEI Weiliu LI 《农业科学与技术》2016,(7):1566-1570
The effects of application of cassava alcohol anaerobic fermentation liquid and mulching of film on overwintering and next year's growth and yield of banana were investigated in this study.The results showed that the application of cassava alcohol anaerobic fermentation liquid with COD concentration of 1 200-2 000 mg/L(900 m~3/hm~2) and mulching of film significantly increased the soil organic matter and available potassium contents in banana orchard,improved the cold resistance of banana seedlings,increased the pseudostem height,pseudostem circumference,green leaf number and chlorophyll content of next year's banana seedlings,brought the flower bud emergence period and harvest period forward,and significantly increased the yield per plant. 相似文献
109.
Inhibitory influence of inorganic salts on banana postharvest pathogens and preliminary application to control crown rot 总被引:4,自引:0,他引:4
Dionisio G.?Alvindia Takao?Kobayashi Keiko T.?NatsuakiEmail author Seinosuke?Tanda 《Journal of General Plant Pathology》2004,70(1):61-65
Lasiodiplodia theobromae, Thielaviopsis paradoxa, Colletotrichum musae, C. gloeosporioides, Fusarium verticillioides, and F. oxysporum were screened in vitro for sensitivity to Na2CO3, NaHCO3, CaCl2, NaCl, and NaClO. The spore germination of all pathogens was completely inhibited by Na2CO3 4g/l, NaClO 5g/l, and NaHCO3, CaCl2, and NaCl 6g/l each. Dipping the bananas for 10–15min in these concentrations reduced the incidence of crown rot (compared with the untreated fruits) 17 days after harvest in fruits treated with NaClO by 67%, with NaHCO3 by 62%, with NaCl by 38%, and with CaCl2 by 33%. Na2CO3-treated fruits had the same incidence of crown rot as untreated fruits. 相似文献
110.