全文获取类型
收费全文 | 237篇 |
免费 | 6篇 |
专业分类
林业 | 19篇 |
农学 | 11篇 |
基础科学 | 2篇 |
58篇 | |
综合类 | 41篇 |
农作物 | 10篇 |
水产渔业 | 3篇 |
畜牧兽医 | 78篇 |
园艺 | 9篇 |
植物保护 | 12篇 |
出版年
2021年 | 3篇 |
2019年 | 3篇 |
2018年 | 4篇 |
2017年 | 2篇 |
2016年 | 6篇 |
2014年 | 4篇 |
2013年 | 12篇 |
2012年 | 13篇 |
2011年 | 9篇 |
2010年 | 5篇 |
2009年 | 6篇 |
2008年 | 16篇 |
2007年 | 13篇 |
2006年 | 12篇 |
2005年 | 10篇 |
2004年 | 8篇 |
2003年 | 11篇 |
2002年 | 6篇 |
2001年 | 4篇 |
2000年 | 7篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1992年 | 2篇 |
1991年 | 4篇 |
1990年 | 2篇 |
1989年 | 5篇 |
1988年 | 2篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1984年 | 2篇 |
1982年 | 2篇 |
1981年 | 2篇 |
1979年 | 2篇 |
1978年 | 4篇 |
1977年 | 5篇 |
1975年 | 4篇 |
1974年 | 5篇 |
1972年 | 1篇 |
1971年 | 4篇 |
1970年 | 2篇 |
1969年 | 2篇 |
1968年 | 2篇 |
1967年 | 1篇 |
1966年 | 7篇 |
1965年 | 1篇 |
1956年 | 1篇 |
1944年 | 1篇 |
1942年 | 4篇 |
1932年 | 1篇 |
1893年 | 1篇 |
排序方式: 共有243条查询结果,搜索用时 234 毫秒
1.
L. Fabricius Krauss Sallinger Rohmeder und Junk 《Forstwissenschaftliches Centralblatt》1942,64(1-2):38-43
Ohne Zusammenfassung 相似文献
2.
3.
4.
5.
6.
7.
8.
9.
V. Krauss Prodekan 《European Journal of Forest Research》1944,66(2):144-144
Ohne Zusammenfassung 相似文献
10.
Extraction and characterization of oil bodies from soy beans: a natural source of pre-emulsified soybean oil 总被引:1,自引:0,他引:1
Iwanaga D Gray DA Fisk ID Decker EA Weiss J McClements DJ 《Journal of agricultural and food chemistry》2007,55(21):8711-8716
Soybeans contain oil bodies that are coated by a layer of oleosin proteins. In nature, this protein coating protects the oil bodies from environmental stresses and may be utilized by food manufacturers for the same purpose. In this study, oil bodies were extracted from soybean using an aqueous extraction method that involved blending, dispersion (pH 8.6), filtration, and centrifugation steps. The influence of NaCl (0-250 mM), thermal processing (30-90 degrees C, 20 min) and pH (2-8) on the properties and stability of the oil bodies was analyzed using zeta-potential, particle size, and creaming stability measurements. The extracted oil bodies were relatively small ( d 32 approximately 250 nm), and their zeta-potential went from around +12 mV to -20 mV as the pH was increased from 2 to 8, with an isoelectric point around pH 4. The oil bodies were stable to aggregation and creaming at low (pH = 2) and high (pH >/= 6) pH values but were unstable at intermediate values (3 = pH = 5), which was attributed to their relatively low zeta-potential. The oil bodies were stable to aggregation and creaming at relatively low salt concentrations (NaCl = 25 mM, pH 7) but were unstable at higher values as a result of electrostatic screening effects. The oil bodies were stable to thermal processing from 30 to 90 degrees C (0 mM NaCl, pH 7), but there appeared to be a change in their interfacial properties (decrease in zeta-potential) at temperatures exceeding 60 degrees C. These results suggest that oil bodies extracted from soybeans have similar or improved stability compared to soybean oil emulsions produced from bulk ingredients and may provide a new way of creating functional soy products for the food industry. 相似文献