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以杏仁为主要原料之一,研究了制作冰淇淋的生产工艺及技术要点.通过L9（34）正交试验最终确定了杏仁冰淇淋的最佳配方：杏仁乳10%,蔗糖14%,淀粉糖浆8%,人造奶油6%,瓜尔豆胶0.15%,黄原胶0.05%,CMC0.1%,单甘酯0.15%,以此得到营养价值高、风味独特的冰淇淋. 相似文献
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印度特大南瓜是一种高产、高效的新特优作物.平均亩产10500-12500公斤,而且营养丰富.成熟的南瓜干物质含量8%-9%(其中:蛋白质2%～4%、糖分7%～13%、淀粉10%-13%),内含12种矿物质,18种氨基酸、多种维生素. 相似文献
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通过研究不同添加比例的大麦若叶青汁粉对冰淇淋品质的影响,开发具有独特风味的大麦若叶青汁冰淇淋,对冰淇淋膨胀率、融化率、质构特性、颜色、口感等指标的测定,确定大麦若叶青汁粉的最适添加量及对冰淇淋品质的影响。当大麦若叶青汁粉添加量为2%时,膨胀率为（31.84±2.06）%,融化率低于0.006%,冰淇淋微观结构气泡分布均匀,宏观上呈现均匀的浅绿色且有大麦若叶青汁粉的独特清香,组织状态稳定,口感滑润,感官评分最高,为最适添加量。本研究开发的大麦若叶青汁冰淇淋是一款具有独特大麦若叶风味的冰淇淋产品,为今后大麦若叶青汁产品的开发提供了有力的数据支撑。 相似文献
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以绿豆变性淀粉和麦芽糊精作为脂肪代替品代替脂肪生产低脂冰淇淋。以冰淇淋的膨胀率、融化率、开始融化时间和浆料黏度作为考察指标,采用响应面法中的中心组合设计优化低脂冰淇淋的配方。结果表明：当绿豆变性淀粉添加量为1.5%、麦芽糊精添加量为2.0%时,低脂冰淇淋的膨胀率、融化率、开始融化时间和浆料黏度分别为61.7%、20.0%、1 249 s和1 243 mPa·s;按照最优配方制得的低脂冰淇淋的硬度、黏附性、弹性和咀嚼性分别为（811.4±4.4） g、（215.7±2.5） g?s、1.091±0.025和 相似文献
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试验用云南特产白板南瓜籽,研磨成粉,选取自然感染涤虫实验猫15只（3只为对照）,分为4个剂量组：超高剂量组（4 g/kg）、高剂量组（3 g/kg）、中剂量组（2 g/kg）、低剂量组（1 g/kg）,以5 d为一个观察周期,连续投喂2次,共10 d。采集粪便,虫卵计数并计算虫卵阳性率,观察治疗效果,确定最佳治疗量。同时观察药物安全性。结果4个剂量组（超高、高、中、低）投喂2次的第5、10天虫卵阳性率分别为9.7%、2.8%,15.8%、3.3%,24.3%、4.3%,56.6%、32.5%。表明南瓜籽具有较好的驱除绦虫效果,最佳剂量为2 g/kg,而且安全、高效、毒性低、药效长。 相似文献
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Thais Ferreira Feitosa Vinícius Longo Ribeiro Vilela Ana Célia Rodrigues Athayde Fábio Ribeiro Braga Elaine Silva Dantas Vanessa Diniz Vieira Lídio Ricardo Bezerra de Melo 《Tropical animal health and production》2012,45(1):123-127
The aim of this study was to verify the in vivo effectiveness of pumpkin seed (Curcubita pepo Linnaeus, 1753) in naturally infected ostriches in the Cariri zone, semiarid region of Paraíba State, Brazil. Forty-eight ostriches were used, African Black breed, of 14 to 36 months old, naturally infected by gastrointestinal nematodes. These animals were divided into four groups of 12 ostriches. Group 1 consists of animals treated with 0.5 g/kg live weight (l. w.) of pumpkin seed meal; group 2 received 1 g/kg l. w. of pumpkin seed meal; group 3 was treated with Albendazole 5 %, at the dosage of 1 mL/10 kg l. w.; and Group 4 was the control group and do not received treatment. Groups 1 and 2 received the treatment for three consecutive days, orally, at intervals of 7 days, totaling nine administrations. The Albendazole 5 % was administered one time, at the beginning of the experiment, according to the manufacturer’s recommendations. The groups treated with pumpkin seed showed a significant decrease in egg counts per gram of feces (EPG), wherein group 2 (1 g/kg l. w.) was the most effective. The control and drug groups showed no reduction in EPG. The results of the present study demonstrate that the administration of pumpkin seed was effective in controlling gastrointestinal helminths in naturally infected ostriches. 相似文献
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Gabriela Halik Andrzej &#x;ozicki Agata Koziorz&#x;bska Ewa Arkuszewska Kamila Puppel 《Journal of animal physiology and animal nutrition》2019,103(1):1-7
Forty Simmental cows were divided into four groups with 10 per group to investigate the effect of a transition diet supplemented with synthetic β‐carotene and natural carotenoid‐rich feed (pumpkin silage) on chemical composition of the colostrum. The control group (I) was fed grass and maize silage and supplemental concentrates, group II additionally received 400 mg/day/cow of synthetic β‐carotene, in group, III 40% DM of maize silage was replaced with pumpkin silage to increase β‐carotene intake by 400 mg in relation to group I, and in group IV 60% DM of maize silage was replaced with pumpkin silage without adjusting for β‐carotene. Colostrum was collected from the cows within 5 hr of calving to determine colostrum composition, the content of immunoglobulins and carotenoids, total antioxidant status (TAS), the content of some bioactive proteins and the composition of fatty acids. The study showed that the experimental diets had no effect on the gross composition of colostrum. The content of α‐carotene, β‐carotene and violaxanthin was significantly higher in group IV than in group I and that of lutein higher in group IV than in groups I and II. Total antioxidant status of colostrum in group IV was significantly higher than in group I. Groups III and IV were characterized by a higher concentration of immunoglobulin IgG in relation to group I. IgM level in groups II, III and IV was significantly higher than in group I and that in groups III and IV was also higher than in group II. The highest IgA concentration was observed in group IV and the lowest in group I. Lysozyme concentration was higher in group IV compared to groups I and II. The diets had no effect on the total content of SFA, MUFA and PUFA in colostrum. 相似文献
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采用南瓜籽与葵花籽复合开发出一种具有果味的风味酸奶。选用嗜酸乳杆菌和丁二酮链球菌作为乳酸菌发酵剂,酸奶原料配比为果仁浆42%、鲜乳50%、白砂糖8%,南瓜籽仁:葵花籽仁浆为3:1,经37 ℃发酵15 h,酸奶产品凝乳结实、口感细腻、酸甜适口、颜色淡绿色,并具有淡淡的果仁香味,乳酸菌活菌数达8×108 CFU/mL,产品指标符合GB 19302-2010《食品安全国家标准 发酵乳》。 相似文献
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本文研究了南瓜酸牛奶的生产工艺,结果表明最佳配方和生产工艺为：南瓜浆30%,鲜牛乳70%,蔗糖5%~6%,复合稳定剂为淀粉0.01%、果胶0.025%、CMC为0.05%,发酵剂接种量4%,41℃下发酵5 h,1℃~5℃低温下后熟24 h。该产品风味独特,营养全面,是一种兼营养保健与疗效作用的酸乳制品。 相似文献
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外源一氧化氮(NO)对低温胁迫下南瓜幼苗氧化损伤的保护效应 总被引：1，自引：0，他引：1
探讨外源 NO 供体硝普钠(SNP)对冷害胁迫下南瓜生长和氧化损伤的内在机制。以南瓜银辉2号和青栗为材料,通过室内人工模拟低温逆境的方法,研究 SNP(100 μmol/L)对冷害胁迫下南瓜幼苗生长、叶绿体色素含量、有机渗透调节物质含量及活性氧代谢的影响。结果表明,冷害导致南瓜幼苗活性氧积累增加,膜质过氧化加剧,光合色素含量下降,渗透调节能力降低,从而显著抑制南瓜幼苗的生长;正常生长条件下, SNP显著提高了超氧化物歧化酶(SOD)、过氧化物酶(POD)、抗坏血酸过氧化物酶(APX)和谷胱甘肽还原酶(GR)活性,显著增加幼苗地上和地下部干重及谷胱甘肽(GSH)、过氧化氢(H2O2)、类胡萝卜素和氨基酸总量;8 ℃/5 ℃(昼/夜)的低温胁迫下,叶面喷施外源100 μmol/L NO供体硝普钠(SNP),促进了植株生长和干物质积累,显著提高了叶片SOD、POD、APX 和GR的活性以及Pro和可溶性糖含量,减少了H2O2和膜脂过氧化产物丙二醛(MDA)的积累;外源NO明显提高了南瓜叶片叶绿素、类胡萝卜素含量、抗坏血酸(ASA)、GSH和可溶性蛋白及氨基酸总量。低温胁迫下,外源NO通过促进抗氧化酶活性、抗氧化剂及有机渗透调节物质含量的提高,降低H2O2和MDA的积累,保护了细胞膜结构的稳定性,维持了冷害下南瓜幼苗碳氮代谢的正常进行,增强了南瓜的抗冷性。试验条件下,NO对银辉2号的促进作用大于青栗。 相似文献
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对内蒙古巴彦淖尔地区葵花盘利用现状进行了调查,将不同晾晒时间的葵花盘与新鲜籽用南瓜壳进行混合青贮发酵,并对其发酵品质进行了研究,以期为科学指导当地的饲料生产,合理利用当地葵花盘制作青贮饲料提供理论依据。将葵花盘晾晒时间设为0 d和4 d 2个处理,葵花盘与籽用南瓜壳按1∶1比例混合,在试验结束后进行感官评定,测定其发酵品质和营养成分。结果表明：葵花盘不同的晾晒时间对葵花盘与籽用南瓜壳混合发酵饲料的感官评定影响显著,对营养价值影响不显著,而对发酵品质的影响极显著;与晾晒0 d相比,晾晒4 d的葵花盘与籽用南瓜壳混合发酵饲料感官评定与发酵品质均较差。 相似文献
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Biochemical proximates of pumpkin (Cucurbitaeae spp.) and their beneficial effects on the general well‐being of poultry species 
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下载免费PDF全文 M. C. Achilonu I. C. Nwafor D. O. Umesiobi M. M. Sedibe 《Journal of animal physiology and animal nutrition》2018,102(1):5-16
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. 相似文献
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现获得晚熟脐橙品种‘晚棱脐橙’一芽变材料，果皮从果蒂到果顶方向有突起棱条。流式细胞仪检测发现南瓜状晚棱脐橙芽变与‘晚棱脐橙’同为二倍体。不同时期果实常规品质分析发现南瓜状晚棱脐橙芽变果实略呈扁圆形，维生素C含量较高，酸甜适中，成熟期晚于‘晚棱脐橙’。石蜡切片分析发现南瓜状晚棱脐橙芽变与‘晚棱脐橙’果皮显微结构发现二者存在细胞水平上的差异。应用ISSR分子标记技术对南瓜状晚棱脐橙芽变与‘晚棱脐橙’进行遗传鉴定，通过正交试验设计，建立反应优化体系。从100条ISSR引物中筛选出17条能扩增出清晰度高、多态性好的引物，对南瓜状晚棱脐橙芽变与‘晚棱脐橙’的基因组DNA进行ISSR-PCR扩增，结果表明有9条引物可使南瓜状晚棱脐橙芽变与‘晚棱脐橙’在某些扩增位点上出现多态性，说明南瓜状晚棱脐橙芽变与‘晚棱脐橙’在DNA分子水平上存在明显差异。 相似文献
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试验旨在探究奶牛乳腺上皮细胞（bovine mammary epithelial cells,BMECs）最佳的冻存液以改善乳腺上皮细胞的冻存质量。BMECs传至第5代后分别加入以下10种不同配方的冻存液。A组：85%DMEM＋10%胎牛血清＋5%DMSO;B组：80%DMEM＋10%胎牛血清＋10%DMSO;C组：75%DMEM＋10%胎牛血清＋15%DMSO;D组：70%DMEM＋10%胎牛血清＋20%DMSO;E组：85%DMEM＋5%胎牛血清＋10%DMSO;F组：75%DMEM＋15%胎牛血清＋10%DMSO;G组：70%DMEM＋20%胎牛血清＋10%DMSO;H组：80%DMEM＋10%胎牛血清＋10%甘油;I组：70%DMEM＋10%胎牛血清＋20%甘油;J组：60%DMEM＋10%胎牛血清＋30%甘油,冻存前统一调整细胞密度到1×106个/mL冻存。分别对复苏后的细胞进行台盼蓝染色计算存活率和PI/Hoechst33258双染计算凋亡率。结果表明,BMECs经不同冻存剂冻存复苏后,细胞活力、形态学及凋亡率表现有所不同,其中B组和G组的活力和24h贴壁率较其他组高,二者的凋亡率较低,二者之间差异无显著性（P〉0.05）;传代后B组细胞的生长状况最好。 相似文献