春燥惹人烦,试试平补食疗方

俗话说,春暖花开,万物复苏。但不少人却被小毛病所扰一身体昏昏沉沉没力气;容易发睥气,一点就着;食欲不振还爱上火……其实,这可能是春燥的表现。此时,养肝补睥最重要。可选择一些平补润燥的食材进行调养。比如,菠菜、角瓜、冬瓜、油菜等绿叶蔬菜,能养肝,可以适当多吃。再搭配适当的猪肉、虾、牛肉等食材,营养均衡,还能为身体补充足够的蛋白质。     

瓜果蔬菜残留农药大意不得

一般的叶菜用水认真洗净,然后浸泡一小时左右或先浸泡一定时间再用水冲洗干净;豆角、辣椒等能够耐受开水烫洗的蔬菜,可先用开水烫几分钟,然后再用冷水来冲洗和浸泡;黄瓜、西红柿、茄子和萝卜可以先洗净,然而后用开水烫和用清水冲洗浸泡;凡是能够削皮的蔬菜、瓜果尽可能的在冲洗之后去皮来食用。一般情况下,蔬菜瓜果上残留的农药只要用水认真冲洗再浸泡一个小时,大部分残留的农药都可以去除了,如果再用开水烫洗过那就更为可靠了,开水烫洗还可以杀灭某些致病的微生物和寄生虫的卵。     

蔬菜中甲胺磷残留量调查分析

目的了解蔬菜中甲胺磷残留量。方法调查奉化两个蔬菜市场。对５个品种２０份蔬菜中甲胺磷残留量按“ＧＢ１４８７６－９４食品中甲胺磷残留量气相色谱测定法”测定。结果９５％样品检出甲胺磷残留量,范围０．１１～８．４１ｍｇ／ｋｇ。结论蔬菜中甲胺磷污染十分严重,特别在带豆、青菜和萝卜菜。     

气质联用仪（GC—MS）法测定蔬菜中7种氨基甲酯类杀虫剂

氨基甲酯类杀虫剂常用于果树、蔬菜、水稻的害虫防治,其对哺乳动物显示的毒性作用与有机磷杀虫剂类似。目前,用于测定氨基甲酯类杀虫剂的方法主要有气相色谱法和高效液相色谱法。气相色谱法多采用氮磷检测器或将氨基甲酯类杀虫剂三氟乙酰化后,采用电子捕获检测器进行测...     

粪便无害化用于蔬菜种植卫生防病效果调查

连续两年调查分析洛阳市郊区农村应用双瓮漏斗厕所对粪便进行无害化处理后用于菜田施肥和对照区粪便未经无害化处理用于菜田施肥的菜田土壤、蔬菜的污染状况,以及相应人群肠道传染病、肠道寄生虫病发病情况。结果表明：处理后的粪便用于菜田施肥,与对照区相比,菜田土壤粪大肠菌值和寄生虫卵污染率明显下降;蔬菜受粪大肠菌群污染程度及受肠道致病菌和寄生虫卵污染率,观察区明显低于对照区;观察区两年肠道传染病发病率分别为１９５２ ‰和１６４４ ‰,明显低于对照区３９２１ ‰和４２４５ ‰（ｐ 均＜ ０００５） ,１９９５ 年中小学生蠕虫卵感染率１７０ ％ ,同对照区２９０ ％ 相比差异有显著性意义（ｐ ＜ ００５） 。     

Effects of Fat-soluble Extracts From Vegetable Powder and β-carotene on Proliferation and Apoptosis of Lung Cancer Cell YTMLC-90

Objective The aim of this investigation was to study the effects of fat-soluble extracts from vegetable powder (FEFVP) and β-carotene on the proliferation and apoptosis of cultured YTMLC-90 lung cancer cells. Methods The lung cancer cells were continuously exposed to a broad range of concentration of FEFVP and [3-carotene. The proliferation was evaluated in MTT test. The induction of apoptosis was evaluated by morphological change, DNA fragmentation analysis, and DNA content analysis combined with flow cytometric analysis. Results Both FEFVP and β-carotene were found to inhibit cell proliferation and to induce morphologic changes consistent with apoptosis in YTMLC-90 cancer cells, including cellular shrinkage, chromatin condensation and nuclear fragmentation. DNA agarose gel electrophoresis showed DNA fragmentation ‘ladder‘‘. Flow cytometric analysis revealed decreased DNA content and the presence of a sub-G1 apoptotic peak.Conclusion These findings are consistent with the induction of apoptosis. Moreover, the effects of FEFVP are stronger than those of β-carotene. FEFVP inhibits the growth of YTMLC-90 probably via the induction of apoptosis cancer cells.