超临界CO_2萃取蔗皮中二十八烷醇工艺研究

采用萃取温度、萃取压力和萃取时间的单因素实验和3因素3水平正交实验优化了超临界CO2萃取蔗皮二十八烷醇的工艺条件,并用气相色谱法对二十八烷醇含量进行测定。结果表明,最佳萃取工艺条件为萃取压力30 MPa,萃取温度45℃,萃取时间为4 h。萃取物中二十八烷醇的浓度为42.51μg/mL,含量为53.14 mg/g。

无公害甘蔗病虫害综合防治法

1～2月值甘蔗萌芽期,要防治甘蔗凤梨病、赤腐病、黑穗病、蔗龟、白蚁、二点螟、条螟。防治措施:1.引种和外调种苗要严格做好检查工作,以防止危害性病虫害和杂草传播和蔓延。2.收获甘蔗时,实行小锄低砍,

味甘性寒道甘蔗

在我国一些地方过年时,有在大门门后两侧摆放两株甘蔗的传统习俗,俗称甘蔗闩门,吃完除夕饭,全家人围坐一起分着吃,寄愿来年的生活如甘蔗一样一日比一日甜。在我的家乡,每到年根,大街上的水果摊旁随处可见"林立"的紫皮甘蔗。乡下人来城里赶集,总会带回家大捆的甘蔗,不知是否也有着同样的意义。

甘蔗高产栽培技术综述

1～2月值甘蔗萌芽期,要防治甘蔗凤梨病、赤腐病、黑穗病、蔗龟、白蚁、二点螟、条螟。防治措施:1)引种和外调种苗要严格做好检查工作,以防止危害性病虫害和杂草传播和蔓延。2)收获甘蔗时,实行小锄低砍,及时清园,消灭越冬虫卵。3)选用无病虫害种苗。下种前用2%石灰水浸种24h,或用0.1%多菌灵或苯苯特、申基托布津药液浸种5min,可防治凤梨病、赤腐病。

Adsorption removal of endosulfan through Saccharum officinarum derived activated carbon from selected soils

Pesticide contamination causes precarious implications on human health and environment.Thus the investigation of its sorption phenomenon is highly imperative.Endosulfan insecticide was examined for its adsorption behavior on ten assorted soils through batch equilibrium method.Adsorption coefficient values(Kd)ranged from 1.4μg/mL to 18μg/mL.The highest Kd value was obtained for Peshawar soil owing to the presence of highest amount of organic matter(1.4%).Negative values of Gibbs free energy displayed a low interaction between soil and pesticide,exhibiting that the reaction was physiosorption and exothermic in nature.Statistical analysis showed a negative correlation of soil pH and Kd(R^2=–0.77 and p=0.03)and a positive correlation with organic matter(R^2=0.96).Activated carbon prepared from Saccharum officinarum bagasse removed significant amount pesticide.The maximum removal observed was 93%and 97%in 5×10^–6 and 7.5×10^–6,respectively.Activated carbon prepared from biomass for removal purposes was proved to be highly efficient and cost effective.

舌尖上的蔗糖香

土制蔗糖对于大多数人来说,似乎已经非常久远了,这也就成了许多人永远留存的模糊记忆。但对于我,只要想起蔗糖的香味,就忍不住吞津咽涎,回味歆羡。对蔗糖的渴望其实是从甘蔗种下去的那一刻开始的。冬天,人们将种蔗砍下来,连同叶子一起埋进土坑里,窖到第二年春天才把甘蔗种苗挖出来,将有芽的种蔗每两节剁成一截,种在旱地里。三四月的春风一吹,幼苗就像雨后的春笋一般,纷纷从肥沃的土壤里冒出头来。

蕉花桑叶伴虾行

盐熏虾，啤酒泡虾，蔗汁脆皮虾，芋泥虾饼。