香蕉果醋的酿造工艺研究

以香蕉果汁酿制的香蕉果酒为原料,采用摇瓶发酵法生产香蕉果醋,探讨了初始酒精度、醋酸菌接种量、发酵温度和发酵时间对香蕉果醋醋酸发酵的影响。利用正交试验设计对香蕉果醋的醋酸发酵工艺进行优化,得到最佳工艺参数为初始酒精度8%,醋酸菌接种量10%,发酵温度28℃,发酵时间7 d。在最优发酵条件下,产酸量为5.67 g/100 m L。     

刺玫果果醋发酵工艺的研究

以刺玫果为原料加工发酵果醋,通过改善工艺条件与发酵方法来提高果醋的营养与风味。通过正交试验结果表明,刺玫果果醋醋酸发酵的最佳工艺参数为醋酸菌接种量8%,初始酒精度7%,发酵温度30℃,装液量30%。     

响应面法优化黑木耳苹果醋醋酸发酵工艺参数

研究黑木耳苹果醋饮料醋酸发酵过程中接种量、发酵温度和初始酒精度对总酸度的影响,采用响应面试验设计分析法优化醋酸发酵的工艺参数。结果表明,在接种量6％、发酵温度28℃、初始酒精度7．5％、发酵7d的条件下发酵,黑木耳苹果醋饮料的醋酸总酸度能够达到4．63mL／100mL。     

固定化技术应用于火棘果醋发酵工艺的研究

以火棘果实为原料,采用正交试验方法对固定化醋酸菌酿造火棘果醋的醋酸发酵工艺进行了研究。结果表明,在接种量相同的前提下,采用固定化醋酸菌发酵具有较高的产酸速率,比游离醋酸菌发酵所需的时间明显缩短。在单因素试验的基础上,通过正交试验,确定固定化醋酸菌酿造火棘果醋的最佳工艺条件为:发酵温度34℃,接种量10%,酒精度7%。所制得的火棘果醋醋香浓郁,酸甜适口,营养丰富,香气自然、协调,是一种市场开发潜力良好的保健果醋。     

蛋黄果果醋生产工艺的研究

以蛋黄果为原料,研究了蛋黄果果醋的生产工艺。酒精发酵L9(34)正交试验表明,最佳组合为:初始糖度14%,接种量8%,发酵温度30℃,发酵5d。醋酸发酵L9(34)正交试验证明,较好工艺为:初始酒精度7%,发酵温度30℃,醋酸菌接种量10%,发酵6d。酿制出的蛋黄果果醋颜色金黄、澄清透亮、醋味浓郁,同时具有蛋黄果的特殊清香味。     

沙枣果醋的工艺研究

介绍沙枣果醋的酿制方法。研究以新疆大沙枣为原料,经酒精发酵和醋酸发酵生产沙枣果醋的工艺流程。试验结果为,酒精发酵的温度为30℃,糖度为16%,酒用酵母接种量为1%;醋酸发酵的温度为32℃,酒精度为7%,醋酸菌接种量为8%,pH值调至4.0。     

血橙果醋发酵工艺

以血橙为原料,采取两步液态发酵法,优化血橙果醋酿造工艺。通过单因素试验和正交试验得到最佳的血橙果醋发酵工艺参数。结果表明,酒精发酵阶段,加糖量30 g/L,发酵温度28℃,发酵时间6 d时产出乙醇的质量浓度为61.7 g/L,乙醇转化率最高为92.86%;醋酸发酵阶段,醋酸菌接种量9%,初始pH值5.0,装液量30%,发酵5 d时,产酸质量浓度达到49.8 g/L,醋酸转化率最高为78.92%,为血橙果醋的酿造提供一定的参考。     

红枣桂圆复合果醋的酒精发酵工艺研究

我国龙眼种植量大,每年都会有生产过剩、附加值不高的问题,同时市场上果醋的品种较单一。为解决以上问题,研究了红枣桂圆复合果醋。以红枣、桂圆为原料,通过单因素试验和响应面试验,对酒精发酵工艺进行研究,确定红枣桂圆复合果醋的酒精发酵最适工艺参数。结果表明,酒精发酵最佳发酵工艺为红枣汁桂圆汁比例1∶2.18,酵母菌接种量0.16%,发酵温度27.70℃,初始糖度20.25°Bx,酒精度的理论值是12.32%Vol,实际值为12.30%Vol。     

沙棘果醋饮料的加工工艺研究

以沙棘为原料,采用液体酒精发酵和表面静置醋酸发酵法制成的风味独特的沙棘果醋饮料。通过正交试验得出醋酸发酵最佳条件为:初始pH值3.5,接种量6%,发酵温度32℃。果醋饮料最佳配方为:原醋3%,白砂糖11%,沙棘汁3%,总酸0.36%。     

枳椇果醋发酵工艺优化研究

以野生枳椇为原料,通过单因素试验和正交试验,对枳椇保健醋发酵工艺条件进行研究与优化,考查了醋酸菌接种量、发酵温度、发酵时间3个因素对醋酸含量的影响,得到了枳椇保健醋加工的最佳工艺参数。结果表明,枳椇保健醋醋酸发酵的最优工艺条件为枳椇果浆糖度调整至14%,初始pH值为4.0,接入0.12%酒用活化酵母,酒精发酵温度32℃,酒精发酵时间7 d,枳椇酒醪酒精度为6.2%;接入9%醋酸菌,醋酸发酵温度36℃,醋酸发酵时间10 d,酿制的枳椇醋具有食醋清香和枳椇果香,酸味柔和、风味独特、酸甜爽口。     

冷冻干燥速溶蛋花汤的加工技术

介绍了运用冷冻干燥技术进行速溶蛋花汤的加工,研究了生产工艺、特点以及影响产品质量的主要因素。试验表明,采用冷冻干燥技术加工的速溶蛋花汤,具有营养丰富、风味独特、方便快捷等特点。     

母猪繁殖障碍成因分析

繁殖障碍是导致母猪淘汰的最主要因素,直接造成母猪非生产天数延长,繁殖猪群生产效率降低,严重影响猪场的经济效益。本文作者对引起母猪繁殖障碍的多方面因素,包括营养因素（如饲养水平、饲料品质、断奶日龄）、环境因素（如温度、湿度、通风、光照）、疫病因素、生产技术及管理因素进行了详细阐述。     

壳聚糖对石榴果汁澄清效果的影响

利用壳聚糖的絮凝作用对壳聚糖在甜石榴汁澄清中的应用效果进行了研究,试验结果表明,壳聚糖用量为0.3g/L、澄清时间为60min、温度为35℃时,甜石榴汁透光率可达85%以上,且通过对壳聚糖处理前后可溶性固形物、总酸、VC等营养成分含量的比较,确定以上工艺参数为甜石榴汁澄清的最佳选择。     

南瓜降糖功能及其系列食品加工技术

阐述了南瓜在糖尿病辅助治疗方面的功能特性,介绍了南瓜降糖主要制品南瓜全粉、南瓜脆片、南瓜果酱和南瓜肉汁的工艺流程和操作要点。     

酸枣幼根原生质体的制备

以生长6~9 d的酸枣种子幼根为试验材料,0.7 mol·L^-1甘露醇作为渗透压稳定剂、pH值5.5~6.0、28℃恒温水浴条件下,以光学显微镜观察的水解总时间、初始产生原生质体的时间、原生质体产量及细胞碎片量为指标,研究通过酶水解来制备酸枣幼根原生质体的方法。结果表明,在含1%果胶酶+4%纤维素酶R-10+3%纤维素酶RS组合的酶解液中,保温4 h可制得产量较高、细胞碎片量较少的原生质体。     

影响核桃贮藏品质因素的分析

介绍了几种核桃贮藏方法,综述了影响核桃贮藏品质的几个主要因素,以及针对上述影响因素提出若干解决对策.     

Efficiency of water use of early plantings of sunflower

Rain fed crop production in Mediterranean environments depends to a large extent on strategies that avoid the intense summer drought. Early plantings of sunflower have given consistently higher yields in such environments, but the basis for such yield increases has not been explored. We conducted two field experiments at Cordoba (Spain) to investigate the effects of an early and a late planting date on the components of water-limited crop productivity; namely, water use (T), water use efficiency (TE) and harvest index (HI) of sunflower. The results were generalized by simulating rain fed sunflower yields, under early (1 January) and late (15 March) plantings, for a 25-year period with the aid of a simulation model of the Ceres type (OILCROP-SUN) which has been validated in Cordoba. Experimental seed yields of early plantings in 1989 and 1996 were 2.0 and 3.0 t ha⁻¹, while late plantings yields were 1.3 and 2.4 t ha⁻¹, for the 2 years. Average simulated yields were 2.7 ± 1.1 and 1.9 ± 0.7 t ha⁻¹ for early and late plantings, respectively. For the 2 years, T of early plantings was higher than that of late plantings, but the response of TE and HI to planting date was not the same in the two experiments. In the simulation exercise, T and TE of early plantings were consistently higher than those of late plantings, while there were no differences in the HI for the two planting dates. We conclude that early plantings of sunflower increase rain fed yields by increasing both T and TE, while the impact of planting date on HI very much depends on the crop water stress pattern, which is quite variable from year to year even in the predictable Mediterranean environment.     

Establishment of High-frequency Regeneration System of Explants of Alfalfa

The cotyledon and hypocotyl of eight varieties of alfalfa( Medicago sativa L. )are used to study the effect of different cultivation procedures and genotypes on embryogenic callus and embryoid induction,plant development and transplant of alfalfa.The varieties of alfalfa with high embryoid induction rate and high differentiation rate are screened. A high frequency regeneration system for alfalfa tissue culture is established:which is benifical to the gene transformation of alfalfa.     

The Simulation of Comfort of Nine DOF of Automobile

Automobile comfort dynamic simulation is necessary when we predict and evaluate the comfort of a automobile or optimize performance of automobile. The nine DOF vibration model of automobile is established , which acts root mean square value of body in multiple work conditions as comfort evaluation indices. Based on the comfort simulation, the Hongyan 1160 is predicted in the way of comfort. The programmes can be used in many different automobiles . The computational result indicates that the model can simulate vibration of automobile truly. It is significant to research automobile comfort evaluation to optimize performance of automobile and comfort simulation .The computational program can be applied to optimize or simulate which has some reference value.     

Measuring of Quantity of Matter-mass and the Measuring of Inertia of Matter-momentclm

A new definition of inertia,i.e. the momentum is the measuring of inertia of matter, is proposed. The article through and etc., subjects, the correctness of the new notion of inertia:The monentum is the measuring of inertia has been demonstrated, and the unsolved contradictions of the traditional definition of inetia. And the mass is the measuring of inertia has been revealed.