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Copyright of Detergent & Cosmetics is the property of Detergent & Cosmetics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

China’s silk industry has a long history and advanced technology, but it gradually declined in modern times. With the establishment of the People’s Republic of China in 1949, silk production gradually increased, and until the reform and opening up in 1978, it achieved great development in science and technology. Science and technology awards provide material and spiritual rewards for scientific discoveries and technological inventions. The state science and technology awards are one type of science and technology awards. They are currently the highest awards for science and technology in China. They have officially resumed awards since the reform and opening up in 1978. Currently, there are five awards. The silk award in the state science and technology awards represents the highest level of China’s silk technology and is also a witness to the development of silk technology since the reform and opening up. According to the statistics of this paper, the silk industry won 54 awards, with focus on the three awards of the State Natural Science Award, the State Technological Invention Award and the State Scientific and Technological Progress Award. In this paper, the issue of the State Science and Technology Awards was divided into three time stages: 1979–1985, 1986–1999, and 2000–2020, and 54 silk award-winning achievements were divided into two parts: sericulture and industry. The regional distribution, transfer of research and development subjects, and the growth and decline of award-winning industries were analyzed, and the characteristics, laws and trends were further summarized to provide historical reference for future silk technology innovation. Five conclusions were drawn. First, the number and proportion of the State Science and Technology Awards for silk decreased but the quality increased, which was in line with the reform trend of China’s science and technology award system. Second, the largest number of silk awards in the Yangtze River Delta region shows that its silk research was in a leading position in China and had the characteristics of complementary sericulture and industry. The award-winning projects in other eight regions with relatively advanced silk technology were either sericulture or industry. Third, based on the type of the first contributor with the largest contribution and a leading role for statistics, the award-winning research institutions regarding sericulture had always been dominated by scientific research institutes in the three stages, while the award-winning research institutions in the silk industry had experienced a transfer from enterprises to universities. This shows that the current scientific research capabilities of silk enterprises have not been fully utilized. In the future, silk enterprises should strengthen scientific research innovation and conduct more cooperation. Fourth, silkworm varieties received the most awards in sericulture, followed by silkworm diseases and silkworm medicines, mulberry trees, and comprehensive utilization of silk resources. The focus of scientific research changed from silkworm diseases and silkworm medicines to silkworm varieties in the three stages, and the main objective changed from increasing production to improving quality. The industry received the most awards for machinery and equipment, followed by dyeing and finishing, silk weaving, and silk reeling. The focus of scientific research changed from machinery and equipment to dyeing and finishing in the three stages, and the main objective changed from both production scale and product quality to mainly improving production quality. Fifth, the accumulation of scientific research results and the improvement of the level of science and technology provide the possibility for sericulture and industry to break barriers and realize the extension of the industrial chain. In the future, the silk industry may achieve subversive development in genetic engineering and biomaterials. [ABSTRACT FROM AUTHOR]

Copyright of China Surfactant Detergent & Cosmetics (2097-2806) is the property of China Surfactant Detergent & Cosmetics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To analyze the aroma components and their contents of jasmine planted in different regions of Guangxi Hengxian County, and the content of trace elements in the corresponding soil activity, so as to provide a reference for the improvement of jasmine planting technology and the improvement of scented tea scenting technology. [Method] Collect commercial jasmine patterns and soil samples of corresponding plots from 11 typical jasmine planting sites in Hengxian County, Guangxi (spots 1-11), and perform GC-MS detection on the volatile components of jasmine. Detect the content of trace elements in soil activity, analyze the difference in aroma component content of jasmine planted in different regions and the correlation between the content of main aroma components and the content of trace elements in soil activity, and explore the effect of trace element content in different activities on the main aroma through regression analysis The effect of component accumulation. [Results] The aroma components of jasmine in Hengxian County, Guangxi contained 7 types of compounds including alcohols, esters, aldehydes, ketones, acids, alkanes and others. 242 identifiable volatile substances were detected in 22 jasmine samples from 11 jasmine planting sites. Among them, the higher content substances are (E)-2-hexenal, linalool, benzaldehyde, and hexyl aldehyde. The average relative content of aldehyde and (E)-3-hexen-1-ol are 21.72, 12.06, 5.21, 2.75 and 2.37, respectively; the total aroma components of jasmine in samples 3, 4, 9, 10 and 11 The relative content is higher than the average. The results of correlation analysis and regression analysis showed that the content of exchangeable calcium and exchangeable magnesium in the soil and the relative content of jasmine aroma components ranked the top 10 (E)-2-hexenal, hexanal, and octamethylcyclotetrasiloxane The content of alkane and 2-octanone was significantly (P<0.05, the same below) or extremely significantly (P<0.01) negatively correlated, and positively correlated with the content of caproic acid. [Conclusion] The aroma components and content of jasmine in different planting areas in Hengxian County of Guangxi are quite different, but the location of the sampling point has no obvious correlation with the aroma components of jasmine. The aroma components of jasmine are mainly divided into alcohols, esters, aldehydes, ketones, acids and alkane compounds, etc.; during the formation and accumulation of the aroma components of jasmine, the content of exchangeable calcium and exchangeable magnesium in the soil increases. It can inhibit the accumulation of (E)-2-hexenal, hexanal, octamethylcyclotetrasiloxane and 2-octanone in jasmine, and promote the increase of hexanoic acid content, therefore, adjust the soil exchangeable calcium and exchangeable magnesium content It can be used as an important method to optimize the subsequent jasmine planting technology. [ABSTRACT FROM AUTHOR]

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Southern Yangtze University: Humanities & Social Sciences Edition is the property of Jiangnan Daxue and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)