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1.
以华南9号食用木薯为材料,在单因素试验的基础上,采用正交试验设计方法对制备食用木薯饮料的酶解条件、调配配方及稳定性等工艺条件进行优化研究。结果表明,最佳酶解工艺条件为:耐高温α-淀粉酶添加量80 U/g,酶解温度85℃,酶解时间120 min;最优调配配方组合为:8%白砂糖+0.2%植脂末+0.04%柠檬酸;复合稳定剂最佳添加量为:蔗糖脂肪酸酯0.04%,分子蒸馏单甘酯0.04%,微晶纤维素0.02%和卡拉胶0.04%。经该工艺生产的食用木薯饮料风味独特,口感细腻,稳定性良好。  相似文献   

2.
介绍以南瓜为原料,经切分、预煮、打浆、过滤、调配、胶磨均质和杀菌等工序生产浑浊型南瓜汁饮料的工艺。采用正交试验对浑浊型南瓜汁饮料主要原料的配方和稳定剂进行优选。结果表明,主要原料的最佳配方为南瓜肉与水的质量比为1∶2,蔗糖添加量为12%,柠檬酸添加量为0.25%;稳定剂以X.C、PGA和瓜尔豆胶复合为佳,复合稳定剂的最佳配方为:PGA含量为0.05%,X.C含量为0.05%,瓜尔豆胶含量为0.05%。使用该复合稳定剂和按上述配方制得的浑浊型南瓜汁饮料,不但爽口,酸甜适宜,风味较佳,而且在室温下静置保存60d稳定性良好。  相似文献   

3.
以广西本地核桃为材料,采用单因素和正交试验对核桃饮料去皮、打浆、调配及稳定性等加工工艺条件进行研究。结果表明,最佳去皮工艺条件为:NaOH浓度0.4%,热烫温度90℃,热烫时间3 min;最优打浆方案为:料液比1∶20(g/g),打浆温度80℃,打浆时间6 min;最佳调配配方为:5%白砂糖+0.2%植脂末;最佳复合稳定剂添加量为:0.06%复配增稠剂(果胶∶CMC-Na∶黄原胶=4∶1∶0.8)+0.10%复配乳化剂(蔗糖脂肪酸酯∶单甘酯=3∶1)+0.15%微晶纤维素。在该工艺条件下生产的核桃饮料为乳白色,核桃风味浓郁,口感爽滑,稳定性良好。  相似文献   

4.
以软枣猕猴桃为主要原料,添加适量糖、柠檬酸及其他辅料,研制出口感优良、风味独特的软枣猕猴桃饮料。试验结果显示,酶的添加量为0.08%,酶解时间为8h的出汁率最高。采用正交实验确定了饮料最佳配方,即果汁15%,糖12%,柠檬酸0.1%,稳定剂0.05%。  相似文献   

5.
以番茄和藜麦为主要原料,对藜麦番茄复合饮料的加工工艺进行了研究。结果表明,藜麦番茄复合饮料最佳的工艺配方为藜麦浆添加量35%,番茄汁添加量25%,白砂糖添加量5%;复配稳定剂的最佳配比为单硬脂酸甘油酯添加量0.12%,黄原胶添加量0.08%,蔗糖脂肪酸酯添加量0.10%,卡拉胶添加量0.05%。  相似文献   

6.
以新疆和田玉枣为原料,研究和田玉枣乳酸发酵饮料加工工艺,结果表明和田玉枣乳酸发酵饮料复合稳定剂最优组合为黄原胶0.08%、CMC-Na0.08%、PGA0.08%;复合甜味剂(蛋白糖与改良甜菊糖的比例为6∶4)添加量为0.2%;最佳均质条件为温度60℃、压力20MPa、均质2次;杀菌条件以85℃、10min为最佳。  相似文献   

7.
为探究红树莓菇娘果复合饮料的最佳配方,以红树莓、菇娘果两种果实的汁液为原料,辅以白砂糖、复合稳定剂进行复配试验。以感官评分为考察指标,设计单因素试验,确定红树莓汁、菇娘果汁、白砂糖和复合稳定剂(魔芋胶+黄原胶)的最佳添加量。在单因素试验的基础上,设计L9(34)正交试验,优化饮料原、辅材料的配比,得到最优配方为:以水的质量为基础质量,稳定剂添加量0.18%,白砂糖添加量6%,菇娘果汁添加量60%,红树莓汁添加量50%。采用最优工艺制作的复合饮料产品色泽清亮,稳定均匀,酸甜适中,融合了红树莓和菇娘果的风味,且其理化性质及微生物指标均符合国家质量标准要求。  相似文献   

8.
以大樱桃、苹果为主要原料,经过制浆、发酵、调配、均质、杀菌制得发酵果蔬汁饮料。通过正交试验确定最佳发酵工艺为发酵时间24 h,发酵温度36℃,菌种接种量5%;最佳配料为大樱桃、苹果的配比4∶1,白砂糖添加量7%,柠檬酸添加量0.20%;最佳稳定剂配方为羧甲基纤维素钠添加量0.08%,黄原胶添加量0.08%,海藻酸钠添加量0.03%,瓜尔胶添加量0.03%。  相似文献   

9.
以甜杏仁为主要原料,研究甜杏仁蛋白饮料的制作工艺,并着重研究影响甜杏仁蛋白饮料稳定性的几个重要因素。确定饮料最佳的工艺参数:风味的配比是蔗糖6%,脱脂奶粉4%;复合稳定剂的最佳配比是黄原胶0.05%,羧甲基纤维素钠0.06%,蔗糖酯0.15%,单甘酯0.15%;最佳均质条件是均质温度60℃,均质压力35 MPa,二次均质。制得的产品口感细腻且稳定性好。  相似文献   

10.
以甜杏仁为主要原料,研究甜杏仁蛋白饮料的制作工艺,并着重研究影响甜杏仁蛋白饮料稳定性的几个重要因素。确定饮料最佳的工艺参数:风味的配比是蔗糖6%,脱脂奶粉4%;复合稳定剂的最佳配比是黄原胶0.05%,羧甲基纤维素钠0.06%,蔗糖酯0.15%,单甘酯0.15%;最佳均质条件是均质温度60℃,均质压力35 MPa,二次均质。制得的产品口感细腻且稳定性好。  相似文献   

11.
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   

12.
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   

14.
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   

15.
[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   

17.
P. A. York  R. Cook 《Euphytica》1989,43(1-2):135-141
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   

18.
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   

19.
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   

20.
[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   

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