Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Xianghui Qi"'
Publikováno v:
Food Science and Human Wellness, Vol 12, Iss 5, Pp 1751-1761 (2023)
In this study, a gene encoding serine protease (PmSpr288) from cold-adapted bacterium, namely Planococcus maritimus XJ11, was cloned and overexpressed in Escherichia coli BL21 (DE3). Bioinformatics analysis revealed that PmSpr288 belongs to serine pr
Externí odkaz:
https://doaj.org/article/7a07a769e64a4747a62d31b7386b4988
Autor:
Chengyu Lu, Ziwei Chen, Yuvaraj Ravikumar, Guoyan Zhang, Xinrui Tang, Yufei Zhang, Mei Zhao, Wenjing Sun, Xianghui Qi
Publikováno v:
Foods, Vol 13, Iss 11, p 1727 (2024)
L-Arabinose isomerase (L-AI) has been commonly used as an efficient biocatalyst to produce D-tagatose via the isomerization of D-galactose. However, it remains a significant challenge to efficiently synthesize D-tagatose using the native (wild type)
Externí odkaz:
https://doaj.org/article/d519f583ed6f49d89ce9b3db091badce
Publikováno v:
Fermentation, Vol 10, Iss 1, p 67 (2024)
Glycolate plays an important role as a platform chemical in both polymeric material and cosmetic industries. However, the microbial production of glycolate often encounters challenges associated with unbalanced metabolic flux, leading to a notably lo
Externí odkaz:
https://doaj.org/article/5dfae9d77d014b2f98f4e17c98ab5042
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 11 (2023)
Externí odkaz:
https://doaj.org/article/3e8eb9a13d1b48618d5ccfc0d9ad1131
Publikováno v:
Biotechnology for Biofuels and Bioproducts, Vol 15, Iss 1, Pp 1-17 (2022)
Abstract Background Microalgae, with their high adaptability to various stress conditions and rapid growth, are considered excellent biomass resources for lipid production and biodiesel feedstocks. However, lipid yield and productivity of the natural
Externí odkaz:
https://doaj.org/article/a66de92a31814455bcc060f92af5dd43
Autor:
Weibin Xie, Qing Wang, Xuan He, Zhichao Yuan, Shengwei Fang, Nan Chen, Zezheng Xiong, Jun’an Zhang, Xianghui Qi, Shaoguang Li, Xuzong Chen
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
Herein, we report the scheme of an optically pumped atomic clock based on a cold cesium atomic beam source. We propose the laser system and physical mechanism of this atomic clock, wherein the atomic beam travels in an upper parabolic trajectory, the
Externí odkaz:
https://doaj.org/article/56dfb275e63341fea7c7072c5a83d8c1
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
The research of optically pumped cesium beam atomic clock (OPCB) at Peking University has lasted for decades. At present, the short-term frequency stability is 3×10−12/τ and the long-term (5-day) frequency stability can reach 7 × 10−15. The op
Externí odkaz:
https://doaj.org/article/e1f89014148d4f2890b9f51f49b1da8e
Publikováno v:
AIP Advances, Vol 12, Iss 7, Pp 075124-075124-10 (2022)
A beam source is proposed for the production of an intense cold cesium atomic beam that can be used in cesium beam atomic clocks. The source is based on a two-dimensional magneto-optical trap (2D-MOT), but introduces hollow cooling and pushing lights
Externí odkaz:
https://doaj.org/article/49b546e7ea97479285eb123f2c77cc92
Publikováno v:
IEEE Access, Vol 9, Pp 49974-49979 (2021)
We experimentally observed a depression in the laser-induced cesium beam fluorescence spectrum. This paper describes the optical configuration we realized and proves that the hole can be used for laser frequency stabilization. The spectrum was record
Externí odkaz:
https://doaj.org/article/1950467ed66945928ae19082fc0536ea
Autor:
Xiaolan Li, Zhi-Hong Zhang, Jiaqi Qiao, Wenjuan Qu, Man-Sheng Wang, Xianli Gao, Cunsheng Zhang, Charles S. Brennan, Xianghui Qi
Publikováno v:
Ultrasonics Sonochemistry, Vol 82, Iss , Pp 105897- (2022)
Natural betalains can be potential food additives because of their antioxidant activities, but they have poor thermal stability. In this study, betalains were extracted from red dragon fruit peel, and then encapsulated with maltodextrin by ultrasound
Externí odkaz:
https://doaj.org/article/01d743eb1d914652a3c4b3237fcc3190