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Analysis of moisture and total sugar content of Huizao based on surface images

International Journal of Agricultural and Biological Engineering 2018年第4期11卷 238-243页

作者： Junxiong Zhang Qingqing Ma Fen He Feng Qu Wei Li College of Engineering China Agricultural UniversityBeijing 100083China Chinese Academy of Agricultural Engineering Planning and Design Beijing 100125China Key Laboratory of Farm Building in Structure and Construction Ministry of Agriculture and Rural AffairsBeijing 100125China

Moisture and total sugar content are two important internal qualities of *** order to explore their correlation with external qualities,a novel method of moisture and total sugar content analysis was proposed based on surface ***,five geometric features and seven texture features of Huizao were obtained to be the external quality indexes by digital image processing ***,the wrinkle degree as an important index was extracted by marked watershed segmentation *** to the external quality the Huizao samples were grouped,and the moisture and total sugar content were determined through physical and chemical ***,the moisture and total sugar content and twelve external indexes were all processed by step discriminatory ***,the regression models of moisture content with short diameter,contrast,and wrinkle degree and total sugar with wrinkle degree were *** coefficients of the model were 0.9992 and 0.9978 respectively,and all the significance was less than 0.01,which show that the regression equation and regression coefficient effect are highly *** results indicate that the moisture and total sugar content of Huizao are greatly correlated with the wrinkle *** moisture and total sugar content are the highest when the wrinkle degree is at 2 to 3 grade,and they decrease gradually with the wrinkle degree *** content shows positive correlation with the size of *** results of model analysis agree well with the experimental results,which can provide valuable reference for improving Huizao grade diversity.

关键词： Huizao step discriminatory analysis moisture content total sugar

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Accumulation of cadmium and its effects on growth, development and hemolymph biochemical compositions in Boettcherisca peregrina larvae （Diptera： Sarcophagidae）

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Insect Science 2006年第1期13卷 31-39页

作者： GUO-XING WU GONG-YIN YE CUI HU JIA-AN CHENG Institute of Applied Entomology College of Agriculture and Biotechnology Zhejiang University Hangzhou China

Newly emerged larvae of the fleshfly, Boettcherisca peregrina were exposed to two different CdCl2 concentrations of 100μg/g and 400 mg/g diet fresh weight （DFW）. They were administered in the diets until the end of larval stage. Cd-exposed larvae accumulated significant amounts of Cd and this accumulation increased with the exposure dose and time. The body weights were lightened and lengths of larvae were shortened considerably after Cd exposure, especially at the higher Cd concentration. The total larval duration was also extremely affected due to Cd exposure. The average duration was prolonged significantly by 14 h at the lower Cd concentration, while it was increased by 33.7 h over controls at the higher Cd concentration. A significant decrease in contents of either soluble proteins, total lipids or caloric values in the hemolymph occurred due to Cd exposure throughout the entire tested period but after 120 h of Cd exposure. In contrast, when exposed to Cd with its higher concentration, total sugar contents in the hemolymph were increased strikingly over the whole tested time, except after 96 h of Cd exposure, while they were not apparently altered except after 24 h of Cd exposure at the lower concentration. Thus, it is suggested that Cd exposure shows significant adverse impact on the growth and development, as well as metabolism, in larvae of this fleshfly, depending on its exposure time and dose.

关键词： Boettcherisca peregrina cadmium caloric value growth and development,lipids proteins total sugar

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The Effect of Magnesium on Accumulations of Primary Metabolites and Yield of Blumea balsamifera

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Agricultural Biotechnology 2020年第4期9卷 56-59,67页

作者： Dan WANG Huiping LAN Yingbo ZHANG Xuan HU Xiaolu CHEN Yuxin PANG Fulai YU Tropical Crops Genetic Resources Institute Chinese Academy of Tropical Agricultural Sciences/Hainan Provincial Engineering Research Center for Blumea balsamiferaHaikou 571101China School of Chinese Materia Medica Resources Guangdong Pharmaceutical UniversityYunfu 527500China

[Objectives]This study was conducted to investigate the effects of magnesium on the yield of Blumea balsamifera(L.)*** the accumulation of primary metabolites that affect yield of the medicinal material.[Methods]The annual seedlings of *** were selected as experimental *** treatment concentrations of magnesium(Mg)were set as 0,1.5,15 and 150 mg/ml supplied by MgSO4·*** yield of the medicinal material was measured *** the content of total sugar was determined by 3,5-dinitrosalicylic acid colorimetry;the content of crude protein was determined by the Kjeldahl method;the ash content was determined by the high-temperature burning method;the crude fat content was determined with a crude fat instrument;and the crude fiber content was determined by the acid-base washing and weighing method.[Results]Mg significantly increased the yield of *** medicinal material,especially 15 mg/ml *** was found that in September,October and November,1.5 mg/ml and 15 mg/ml Mg significantly increased the contents of primary metabolites including total sugar,ash,crude protein,crude fat and crude fiber,and 150 mg/ml of Mg increased the accumulation of total sugar,ash,crude protein and crude fiber to different degrees,but had certain inhibitory effect on the accumulation of crude *** December,the application of Mg inhibited the accumulation of total sugar,ash and crude protein to different degrees,but significantly promoted the accumulation of crude fat and fiber.[Conclusions]This study provides a theoretical basis for clarifying the effects of different concentrations of magnesium on plant growth.

关键词： Magnesium(Mg) Blumea balsamifera Yield Primary metabolites total sugar Ash Crude protein

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