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排序方式: 共有246条查询结果,搜索用时 15 毫秒
1.
Zhencen Luo Lingguo Zhou Yiwei Zhu Caiqiong Zhou 《International Journal of Food Science & Technology》2021,56(2):773-784
In this study, hot air drying (HAD), hot air-/microwave-assisted vacuum drying (HAMAVD) and hot air-assisted microwave drying (HAAMD) were applied to lactic acid-fermented Pyracantha fortuneana fruit (PFF). Influences of different drying methods on fluidity and dispersion, microstructure, hygroscopicity, rehydration, colour change, sourness and energy consumption were investigated. Results showed that HAAMD had the best overall performance on the quality of the PFF powder. HAAMD PFF powder had higher expansion force (1.65 mL g−1) and water-holding capacity (2.68 g g−1), lower degree of compression (9.09%) and energy consumption, smaller colour change and better taste. Organic acids (mainly malic acids) of all drying powders decreased, but HAAMD and HAMAVD could better improve the acidity characteristics of PFF powders, which may be related to the drying time and the temperature change processes. Consequently, this study can provide references for the utilisation of fresh PFF, the design and commercialisation of PFF-related products. 相似文献
2.
J Haydersah I Chevallier I Rochette C Mouquet-Rivier C Picq T Marianne-Pépin C Icard-Vernière JP Guyot 《Journal of food science》2012,77(8):M466-M472
The potential of tropical starchy plants such as plantain (Musa paradisiaca), breadfruit (Artocarpus communis), and sweet potato (Ipomoea batatas) for the development of new fermented foods was investigated by exploiting the capacity of some lactic acid bacteria to hydrolyze starch. The amylolytic lactic acid bacteria (ALAB) Lactobacillus plantarum A6 and Lactobacillus fermentum Ogi E1 were able to change the consistency of thick sticky gelatinized slurries of these starchy fruits and tubers into semiliquid to liquid products. Consequently, a decrease in apparent viscosity and an increase in Bostwick flow were observed. These changes and the production of maltooligosaccharides confirmed starch hydrolysis. Sucrose in sweet potato was not fermented by strain A6 and poorly fermented by strain Ogi E1, suggesting possible inhibition of sucrose fermentation. In all 3 starchy plants, rapidly digestible starch (RDS) was higher than slowly digestible starch (SDS) and resistant starch (RS) represented between 17% and 30% dry matter (DM). The digestibility of plantain was not affected by fermentation, whereas the RDS content of breadfruit and sweet potato decreased and the RS content increased after fermentation. Practical Application: The characteristics resulting from different combinations of gluten free starchy plants (plantain, breadfruit, sweet potato) and amylolytic lactic acid bacteria (ALAB) offer opportunities to develop new functional fermented beverages, mainly for breadfruit and sweet potato, after further investigation of their formulation, sensory attributes, nutritional, and prebiotic characteristics. 相似文献
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利用发酵法和酶法综合技术改进玉米淀粉生产湿法浸泡工艺 总被引:2,自引:1,他引:1
通过设计三水平三因素正交实验优化了嗜热乳酸菌发酵和菠萝蛋白酶酶法综合加工工艺,获得玉米淀粉的浸泡工艺条件为:浸泡水温度50±2℃;嗜热乳酸菌接种量10%;发酵浸泡玉米时间12 h,然后加入0.2%菠萝蛋白酶作用4 h,精磨后分离获得淀粉。改进后的工艺过程不添加SO2,浸泡时间从传统的48 h缩短至16 h。 相似文献
5.
兔肉香肠中乳酸菌分离与发酵特性的研究 总被引:1,自引:0,他引:1
从传统自然发酵兔肉香肠中分离得到3株乳酸菌L26、L34和L106经鉴定分别为植物乳杆菌(Lactoba—cillus.plantarum)、清酒乳杆菌(L.sake)和果糖乳杆菌(L加”蜘淞)。对其发酵特性的研究表明:3株茵均有良好的产酸能力、耐盐能力、耐亚硝酸盐能力和抑菌性能,相互之间无拮抗作用,可作为发酵兔肉用混合发酵剂。 相似文献
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以大米,麦芽为主要原料,经粉碎、糊化、糖化、乳酸菌种发酵等一系列操作以后,加入调味剂和辅助剂,即可制备发酵米乳饮料。实验时确定了发酵米乳的最佳制作工艺:大米与水以1:10的比例蒸煮糊化,糖化时麦芽汁的加入量为原料的30%,糖化酶加入量为发酵醪液的1%;按照3:2的比例分别接种保加利亚乳杆菌和嗜热链球菌到大米培养基中培养制备母发酵液,前发酵时母发酵液的接入量为1%~3%,时间为72~80 h,温度为37℃,后发酵时间为15~30 d,温度为4~5℃。经此一系列操作后可制得口感细腻、米香、麦芽香浓郁,营养健康的功能性发酵米乳饮料。 相似文献
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Exopolysaccharide production from whey lactose by fermentation with Lactobacillus delbrueckii ssp. bulgaricus 总被引:1,自引:0,他引:1
Ropy Lactobacillus delbrueckii ssp. bulgaricus (strain RR) was used for production of exopolysaccharide in sweet whey and simulated whey permeate (SWP) supplemented with combinations of lactose, KH2PO4, NH4Cl, casamino acids, and mineral salts. Media were incubated at 32, 37, and 44°C for 72h. Periodic adjustment of pH to ~6.2 increased viscosity and lactose utilization, and the free galactose and lactic acid in the media. The effect of pH adjustment was greater than that of supplementation with nutrients or minerals. Fermentation of supplemented SWP generally produced lower viscosities than did fermentation of supplemented sweet whey. After 24h fermentation, viscosity decreased in pH adjusted media. Viscosity of media was highest when incubation was at 32°C and lowest with incubation at 44°C. 相似文献
10.
凤梨南瓜乳酸发酵保健饮料的研制 总被引:1,自引:1,他引:1
以凤梨、南瓜为主要原料,研制发酵型乳酸饮料,用正交试验确定其最佳工艺条件为:凤梨汁:南瓜汁=1:2.混合发酵剂用量为6%,发酵时间为24h。产品具有风味独特、酸甜适口、营养丰富的特性。 相似文献