南瓜蜂蜜发酵蛋糕的研究与开发

将发酵的方法应用于人们日常生活普遍食用的蛋糕中,同时添加南瓜泥和蜂蜜,研究开发一种新型南瓜蜂蜜发酵蛋糕,使蛋糕进一步向营养型转化,并具有一定的风味和保健功效,以增加蛋糕的花色品种,从而促进消费。     

裸仁南瓜小瓜型父本雄花不育产生的原因

2000年－2004年,在甘肃河西走廊的酒泉市布置田间试验,研究了生理和遗传因素、密度、温度对裸仁南瓜小瓜型父本经历一段雄性不育期的影响。结果表明：裸仁南瓜小瓜型父本雄花开放后经历4~9d的不育雄花期才能开放正常雄花,这是一种自身的生理遗传特征;密度对小瓜型父本雄花不育程度有影响,密度越大雄花不育时间越长,单株产生的无效雄花数越多。25cm×90cm密度条件下不育雄花经历11d,比35cm×90cm、40cm×90cm分别长1d和2d,25cm株距单株平均不育雄花数为8.7个,比35cm、40cm株距分别多1.3个和2.2个,40cm×90cm为理想播种密度;从父本播种到有效雄花开放这一时段温度越高,无效雄花开放的时间越短,较低温度条件下,单株不育雄花数量增加,不育雄花开放经历时间增加。裸仁南瓜小瓜型父本经历一段雄性不育期除自身的生理遗传特征外,密度、雄花开放前温度也是重要的影响因素。     

观赏南瓜种质资源引进筛选及创新利用研究

为培育出长势强、结瓜性能好、抗病性强观赏南瓜品种,山东省烟台市农业科学研究院自2000年先后从国内外引进观赏南瓜32份,对引进材料进行了植物学特征调查,并进行连续自交纯化,观察自交后代性状表现,从中选出稳定有观赏价值南瓜资源22份,配制出 ‘皇太子’、‘白雪公主’、‘佛钟’、‘花冠’、‘牵手’、‘花脸’、‘飞碟’、‘朝阳’、‘大铃铛’、‘小金玉’、‘龙女’、‘福星’12个观赏南瓜杂交种,新品种育成后在中国的上海、北京、重庆、安徽、河北、黑龙江、以及山东的寿光等地推广应用。     

中国南瓜突变体库构建及表型变异的初步分析

为促进中国南瓜功能基因组学的研究,以中国南瓜高代自交系N87的种子为试验材料,构建中国南瓜突变体库.将材料在不同浓度的甲基磺酸乙酯(EMS)溶液中处理不同时间,并对诱变后代的表型变异特征进行分析.结果表明,以诱变后南瓜种子的发芽率、成苗率及幼苗生长状况为指标,筛选出1.6％EMS处理12 h为中国南瓜种子最佳诱变条件....     

日光温室西红柿病虫害防治对策

简析了日光温室生态系统西红柿生育特点和病虫害发生特点,并提出“改善环境、健身栽培、综合预防、合理用药”防治策略。     

Biochemical proximates of pumpkin (Cucurbitaeae spp.) and their beneficial effects on the general well‐being of poultry species

There is a growing need to increase productivity in poultry. Growth hormones and antibiotics have the ability to improve health, weight gain and feed efficiency in meat‐producing animals. The growth‐promoting antibiotics are administered to poultry to improve the general performance of the chicken. However, the use of the xenobiotic drugs in food‐producing animals has been a concern and a sensitive issue of debate for several decades in the EU and many other regional blocks of the world. Consequently, the use of hormones in animal production has been banned in Italy, Denmark and Germany for over 4–5 decades, while Belgium and Greece had never permitted its use for livestock fattening purposes. Bioactive phytochemicals exhibit antimicrobial, antioxidant, antiparasitic, antiprotozoal, antifungal and anti‐inflammatory properties and consequently have several beneficial effects on appetite, growth and the immune status of the animal. In South Africa, different species of pumpkin are produced for food due to their high nutrient content. The flesh serves as a traditional food, while the seeds and peels are commonly discarded. Pumpkin seed extract is reported to be useful for immunomodulation, reproductive health, therapeutics over a wide range of disease conditions and stimulates metabolism of accumulated fats. Studies have also shown that pumpkin seeds are a valuable source of protein and fat. Their complexity and extent of bioactivity offers sustainable prospects for natural control of pathogenic/parasitic organisms, stimulate nutrition or enhance resistance to disease infections, and reduce abdominal fat and serum levels of harmful lipids, while increasing serum levels of beneficial lipids.     

南瓜蜂蜜凝固型酸乳的研制

以鲜牛乳、南瓜、蜂蜜为主要原料,采用驯化的保加利亚乳杆菌和嗜热链球菌进行发酵生产南瓜蜂蜜凝固型酸乳。通过单因素试验、正交试验及感官评价试验确定了最佳生产工艺条件:南瓜浆为15%,蜂蜜为6%,接种量为4%,发酵时间为4 h。     

南瓜汁的酶解法制取及其在发酵面制品中的应用

研究了南瓜酶法制汁工艺,确定了最佳酶法制汁工艺参数。结果表明:面粉中添加一定量的南瓜能够改善制品的色泽,增加制品的光泽,还能改善产品的质地和风味。但添加量过高会直接影响制品的感官品质,降低面坯的发酵速度;添加过少则失去研究的意义。500 g面粉中添加125 g南瓜汁、3 g酵母调制面团,经2 h发酵,所得制品最优。     

南瓜疫病菌(Phytophthora capsici)毒素对寄主叶片超微结构的影响

文章对南瓜疫病菌(Phytophothora capsici)进行了毒素提取,并用该毒素处理南瓜幼苗,然后观察南瓜叶片超微结构变化。Phytophothora capsici毒素处理后,随着其浓度的增加和处理时间的延长,细胞质壁分离严重,质膜断裂;叶绿体膨胀严重,膜消失,基粒片层紊乱;线粒体膜、脊被破坏;核膜不均一。     

南瓜品种比较及其栽培技术的研究

本研究选用上海效区和江浙一带露地主要栽培的南瓜品种6个，环棚主要栽培的品种4个，经过随机排列，3次重复的田间试验设计，进行严格的品种比较试验，试验结果表明，从产量性状看，露地栽培条件下，久藏青，人头南瓜和枕头南瓜极显著高于黄囊南瓜和浙引93－2，山西无蔓产量最低；环棚栽培条件下，东升南瓜级显著高于南瓜，栗晶南瓜和锦栗南瓜，从品质看，露地栽培条件下，黄囊南瓜和浙引93－2优于其它露地参加试验的4个品种；环棚栽培条件下，东升南瓜和栗晶南瓜优于其他2个品种，可见黄囊南瓜和东升南瓜为上海市郊南瓜种植的首选品种。