Chinese Academy of Sciences

Beijing Semnl Biotechnology Co., Ltd.

Xiaoqing Zhang

Haiyan Wang

Jingqi Liu

Aiqing Liu

Xinyu Ma

Shouyin Zheng

Mingkang Lei

Minsong Huang

Shuang Liu

Hengchi Lei

Jiatian Chen

Pengcheng Li

The present disclosure provides a micromolecular type III collagen peptide capable of promoting secretion of type III and IV collagens, and a preparation method therefor, belonging to the field of micromolecular peptides. The method for preparing the micromolecular type III collagen peptide comprises the steps of pretreating livestock and poultry skin, enzymatically hydrolyzing the livestock and poultry skin by using a combined enzyme and the like. The micromolecular type III collagen peptide may include any one or more of amino acid sequences shown in SEQ ID NOs. 1-8. The preparation method of the present disclosure has short production period. The resulting product has good color and smell, high recovery rate, high content of the micromolecular type III collagen peptide and a specific sequence.

Micromolecular type III collagen peptide capable of promoting secretion of type III and IV collagens, and preparation method therefor

A dual line photodiode array device encapsulates, on a photoelectric sensing element, two columns of photodiode array units having the same specification and performance; the dual line photodiode array device includes a first photodiode array unit and a second photodiode array unit that are arranged parallel to each other and is used for achieving the measurement of particle velocity. The particle velocity may be more accurately measured by means of integrating the two columns of photodiode array units on a single photosensitive element. The dual line photodiode array device may also be applied to the measurement of raindrops and sea spray droplets.

Dual line diode array device and measurement method and measurement device for particle velocity

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Beijing, China

Xiaoqing Zhang