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1.
以新鲜毛酸浆为原料,采用液态发酵法,研究酵母接种量、初始糖度、初始pH值和发酵温度对毛酸浆酒理化指标和感官评价的影响,采用正交试验方法优化并得到最佳发酵工艺条件,最终获得具有毛酸浆独特风味的毛酸浆果酒。结果表明,毛酸浆酒最佳发酵工艺条件为:发酵温度28℃,酵母接种量0.1%,初始pH值3.5,初始糖度18 Brix。 相似文献
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以新疆赛买提杏干为原料,酒精度和感官评分为评价指标,在酵母接种量、初始pH值、初始糖度和发酵温度4个单因素试验结果的基础上,采用Box-Benhnken中心组合设计试验,优化杏酒发酵工艺条件。结果表明：在杏水比1∶3(m/m),果胶酶添加量0.04%和纤维素酶添加量0.3%,25℃酶解24 h下,杏汁可溶性固形物含量可达15.2%,果肉与汁比例适宜发酵杏酒。通过建立响应面回归模型并对试验结果进行统计分析,得出杏酒发酵最佳工艺为：发酵初始p H值为3.5,发酵温度22.4℃,初始糖度22.35%,酵母接种量0.25 g/kg。在此条件下制得的杏酒酒精度为12.4%vol,感官评分94分。该研究结果为杏酒发酵生产提供了参考。 相似文献
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以自选的5株酵母菌为出发菌种进行酒精发酵试验,最终获得1株适宜以甜高梁汁液为原料进行液体发酵的高产酵母菌株,其最佳发酵条件为:温度32℃,pH值5.5,接种量0.6mL,糖度19Brix。 相似文献
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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。 相似文献
6.
《农产品加工．学刊》2020,(8)
以香蕉菠萝复合果酒为研究对象,通过单因素试验和正交试验对影响香蕉菠萝果酒品质的酵母品种、原料配比、初始糖度、酵母接种量进行了筛选和优化,以期得到果酒的最佳工艺条件。结果表明,香蕉菠萝复合果酒最佳酵母品种为葡萄酒酵母,发酵条件为初始糖度20%,原料配比2∶1,酵母接种量0.95%时,此条件下果酒感官评分值最高,酒精度、总酸、残糖及微生物指标均符合国家标准。 相似文献
7.
《农产品加工．学刊》2015,(9)
以酒精产量为指标,对樱桃汁外观糖度、发酵温度、酵母接种量进行响应面分析,经优化得出最适发酵条件为樱桃汁外观糖度22.6%,发酵温度26.5℃,酵母接种量5.8%。在此最佳发酵条件下发酵12 d,产品的酒精产量是11.5%±0.2%。 相似文献
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以樱桃番茄为原料,采用单因素试验设计和正交试验设计进行分析。通过对活性干酵母和固定化酵母发酵制备樱桃番茄果酒的试验进行比较,并对固定化酵母细胞连续发酵进行了对比分析,最后对固定化酵母发酵过程中发酵料的起始糖度、主发酵温度、初始pH值和SO2浓度对固定化发酵的影响进行了研究。结果表明,固定化酵母比游离酵母发酵速度快;固定化酵母可以重复利用发酵樱桃番茄果酒。固定化酵母发酵制备樱桃番茄果酒的最佳工艺条件为:初始糖质量分数为20%,pH值5.0,SO2添加量为30 mg/L,在25℃下,发酵7 d。采用明胶—单宁复合澄清剂澄清处理,最后在75℃下杀菌15 min,得到果香浓郁、色泽金黄、澄清透明的优质樱桃番茄果酒。 相似文献
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梨果酒酿造工艺的研究 总被引：3，自引：0，他引：3
以皇冠梨为原料,研究接种量、发酵温度、糖度及发酵时间等4个因素对皇冠梨果酒发酵特性的影响。根据单因素试验结果,采用L9(34)正交组合试验设计,确定皇冠梨果酒发酵的最佳工艺条件。结果表明,接种量对皇冠梨果酒发酵的影响最大,其次是发酵温度、糖度和发酵时间。最适发酵条件为:接种量0.08mg/mL,发酵温度28℃,含糖量16%,发酵时间9d。在此条件下发酵而成的皇冠梨果酒,酒色诱人,口感醇和,风味独特。 相似文献
11.
Biological Activity and Quantification of Suspected Allelochemicals from Alfalfa Plant Parts 总被引：7，自引：0，他引：7
Autotoxicity restricts reseeding of alfalfa (Medicago sativa L.) after alfalfa until autotoxic chemical(s) breaks down or is dispersed into external environments. A series of aqueous extracts from leaves, stems, roots and seeds of alfalfa ‘Vernal’ were bioassayed against alfalfa seedlings of the same cultivar to determine their autotoxicity. The highest inhibition was found in the extracts from the leaves. Extracts at 40 g dry tissue l?1 from alfalfa leaves were 15.4, 17.5 and 28.7 times more toxic to alfalfa root growth than were those from roots, stems and seeds, respectively. A high‐performance liquid chromatography (HPLC) analysis with nine standard compounds showed that the concentrations and compositions of allelopathic compounds depended on the plant parts. In leaf extracts that showed the most inhibitory effect on root growth, the highest amounts of allelochemicals were detected. Among nine phenolic compounds assayed for their phytotoxicity on root growth of alfalfa, coumarin, trans‐cinnamic acid and o‐coumaric acid at 10?3 m were most inhibitory. The type and amount of causative allelochemicals found in alfalfa plant parts were highly correlated with the results of the bioassay, indicating that the autotoxic effects of alfalfa plant parts significantly differed. 相似文献
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C. J. Spurr D. A. Fulton P. H. Brown R. J. Clark 《Journal of Agronomy and Crop Science》2002,188(4):275-280
Development of onion (Allium cepa L., cv. ‘Early Cream Gold’) seed under cool climate conditions in Tasmania, Australia occurred over a longer duration than previously reported, but similar patterns of change in yield components were recorded. In contrast to previous studies, umbel moisture content declined from 85 to 67 % over 57 days while seed moisture content decreased from 85 to 31 %. Seed yield continued to increase over the duration of crop development, with increasing seed weight compensating for seed loss resulting from capsule dehiscence in the later stages of maturation. Germination percentage was high and did not vary significantly from 53 to 77 days after full bloom (DAF), but mean germination time declined and uniformity of germination increased significantly over the same time period. The percentage abnormal seedlings declined with later harvest date, resulting in highest seed quality at 77 DAF. The results of this study suggest that the decision to harvest cool climate onion seed crops before capsule dehiscence will result in a loss of potential seed yield and quality. 相似文献
13.
Jens Jensen 《Euphytica》1979,28(1):47-56
Summary The high-lysine gene in Risø mutant 1508 conditions an increased lysine content in the endosperm via a changed protein composition, a decreased seed size, and several other characters of the seed. The designation lys3a, lys3b, and lys3c, is proposed for the allelic high-lysine genes in three Risø mutants, nos 1508, 18, and 19. Linkage studies with translocations locate the lys3 locus in the centromere region of chromosome 7. A linkage study involving the loci lys3 and ddt (resistance to DDT) together with the marker loci fs (fragile stem), s (short rachilla hairs), and r (smooth awn) show that the order of the five loci on chromosome 7 from the long to the short chromosome arm is r, s, fs, lys3, ddt. The distance from locus r to locus ddt is about 100 centimorgans. 相似文献
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G. H. Kroon 《Euphytica》1994,76(1-2):125-125
Summary
K x vadensis is a hybrid of K. blossfeldiana and K. marmorata obtained after doubling the number of chromosomes. 相似文献
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Hongyan WEI Jian ZHOU Jinguang LU Jingzheng SONG Qiongxi YU Zhihong JIANG 《Medicinal Plant》2019,(6):27-29
[Objectives]This study aimed to establish a QAMS(quantitative analysis of multi-components by single-marker)method for simultaneous determination of four phenol... 相似文献
16.
Summary Avoidance of rust fungi that was based on poor appressorium induction was previously found in Hordeum chilense. In the present study 95 accessions of Triticeae were screened for avoidance of Puccinia hordei. The percentage of appressorium formation per germinated spore ranged from 6 to 90%. On none of the 41 accessions of Aegilops, Agropyron, Elymus, Secale, Thinopyrum or Triticum studied was the rate of appressorium formation lower than 25%. Lower rates of appressorium formation were, however, found on accessions of wild barley species Hordeum brachyantherum, H. marinum, H. parodii and H. secalinum. Its implications in cereal breeding are discussed. 相似文献
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Summary Reactions of 13 grasses to Meloidogyne naasi varied with species; ryegrasses, fescues and their hybrids were generally susceptible and cocksfoot and timothy resistant. Marked variation in host resistance levels occurred between genotypes within cultivars.Selection of single plants, followed by tests on replicate tillers, identified resistant and susceptible genotypes in both Italian and perennial ryegrass cultivars. Resistant plants had few nematode-induced galls and fewer females and eggs than susceptibles. There was more or less continuous variation, with many genotypes intermediate between extremes of resistance and susceptibility. Selected resistant and susceptible genotypes are of use in assessing variation in nematode populations and as controls for breeding and selection programmes. 相似文献
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W. Erskine M. Tufail A. Russell M. C. Tyagi M. M. Rahman M. C. Saxena 《Euphytica》1993,73(1-2):127-135
Lentil production is limited by lack of moisture and unfavorable temperatures throughout its distribution. Waterlogging and salinity are only locally important. Progress has been made in breeding for tolerance to drought through selection for an appropriate phenology and increased water use efficiency and in breeding for winter hardiness through selection for cold tolerance.The diseases rust, vascular wilt, and Ascochyta blight, caused by Uromyces viciae-fabae, Fusarium oxysporum f. sp. lentis, and Ascochyta fabae f. sp. lentis, respectively, are the key fungal pathogens of lentil. Cultivars with resistance to rust and Ascochyta blight have been released in several countries and resistant sources to vascular wilt are being exploited. Sources of resistance to several other fungal and viral diseases of regional importance are known. In contrast, although the pea leaf weevil (Sitona spp.) and the parasitic weed broomrape (Orobanche spp.), and to a lesser extent the cyst nematode (Heterodera ciceri), are significant yield reducers of lentil, no sources of resistance to these biotic stresses have been found. Directions for future research in lentil on both biotic and abiotic stresses are discussed. 相似文献
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D. A. Bond G. J. Jellis G. G. Rowland J. Le Guen L. D. Robertson S. A. Khalil L. Li-Juan 《Euphytica》1993,73(1-2):151-166
Progress is being made, mainly by ICARDA but also elsewhere, in breeding for resistance to Botrytis, AScochyta, Uromyces, and Orobanche; and some lines have resistance to more than one pathogen. The strategy is to extend multiple resistance but also to seek new and durable forms of resistance. Internationally coordinated programs are needed to maintain the momentum of this work.Tolerance of abiotic stresses leads to types suited to dry or cold environments rather than broad adaptability, but in this cross-pollinated species, the more hybrid vigor expressed by a cultivar, the more it is likely to tolerate various stresses. 相似文献
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Chunli TANG Fengxian ZHAO Hongxia CHEN Jiabao MA Jiangcun WEI Meiyan QIU Zhen XIE 《Medicinal Plant》2019,(6):60-65
[Objectives]To optimize the water extraction process of Chinese Herbal Compound Man Gan Ning and establish a method for its extraction and content determination... 相似文献