Results 251 to 260 of about 2,391,391 (303)

Multivariate Analysis Illuminates the Effects of Vacuum Drying on the Extractable and Nonextractable Polyphenols Profile of Loquat Fruit.

Journal of Food Science, 2019
The current study evaluated the effects of vacuum drying on the whole polyphenol profile of loquat fruit, including extractive and nonextractive polyphenols.
Wenfeng Li, Xv Wang, Jing Zhang, Xin Zhao, Yingmei Wu, Si Tan, Qiaoran Zheng, Xiaoxv Gao   +7 more
semanticscholar   +1 more source

Effects of pretreatments on properties of microwave-vacuum drying of sweet potato slices

Drying Technology, 2019
Pretreatments of blanching (BL); osmotic dehydration at 35°Brix of sucrose (OD); ultrasound in distilled water (UD), and ultrasound-assisted osmotic dehydration (UO) were carried out for microwave-vacuum drying (MVD) orange- and purple-flesh sweet potato
Camel Lagnika, Ning Jiang, Jiangfeng Song, Dajing Li, Chunquan Liu, Jiapeng Huang, Qiuyu Wei, Min Zhang   +7 more
semanticscholar   +1 more source

The Reciprocating Dry-Vacuum Pump

Transactions of the American Society of Mechanical Engineers, 1928
Abstract The paper is concerned with the number of strokes that must be made by a pump to produce a given pressure in a tank.. The theory of a vacuum pump with clearance is presented, and a formula is derived which gives the requisite number of strok.es and which involves the dead-end vacuum expressed as a fraction of a perfect vacuum ...
Walter S. Weeks, Pierre E. Letchworth
openaire   +1 more source

Effect of vacuum drying on drying kinetics and quality of the aqueous extracts of Callicarpa nudiflora Hook. et Arn.

, 2021
Xu Peng, Xueyuan Peng, Tiejian Yuan, Junling Yang, Xiaoqiong Li, Zhang Huafu, Yu Zhang, Zhentao Zhang, X. Jia   +8 more
semanticscholar   +1 more source

Freeze drying and vacuum drying

2023
Carlos Eduardo Orrego, Natalia Salgado, Luisa Fernanda Sarmiento   +2 more
openaire   +1 more source

Freeze drying - vacuum sublimation

Journal of Scientific Instruments, 1951
A short account is given of the principles involved in the dehydration of heat sensitive materials by sublimation from the frozen state. References are made to drying rates and important design features of commercial apparatus.
openaire   +1 more source

Vacuum drying

Vacuum, 1956
null E.W. Flosdorf, Samuel C. Tease
openaire   +1 more source

Intensified vacuum drying of antibiotics

Pharmaceutical Chemistry Journal, 1968
1. Drying of streptomycin under vacuum under dynamic or static conditions is completed in identical time; while drying of penicillin under dynamic conditions offers the possibility of intensifying drying about two-fold compared to static conditions. 2.
openaire   +1 more source

Vacuum-Drying and Cryopreservation of Prokaryotes

2007
Traditionally, the ex situ study of prokaryotes (members of Archaea and Bacteria) has required access to living cultures. Although it may be possible to maintain a small number of strains by serial transfer, such methods are not the best, particularly for long-term storage or for keeping a large collection. One of the major problems is dealing with the
openaire   +2 more sources

Practical Vacuum Drying

Industrial & Engineering Chemistry, 1938
R. C. Ernst, J. W. Ridgway, F. M. Tiller
openaire   +1 more source