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Exploration and analysis of the composition and mechanism of efficacy of camel milk

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FOOD BIOSCIENCE 2023年第3期53卷 85-95页

作者： Liu, Chen Liu, Ling-Xiao Yang, Jie Liu, Yun-Guo Zhejiang univ Shandong Linyi Inst Modern Agr Linyi 276000 Peoples R China Linyi univ Coll Life Sci Linyi 276005 Peoples R China Linyi Acad agr Sci Linyi 276005 Peoples R China xinjiang univ Coll Life Sci & Technol Urumqi 830046 Peoples R China

Camel milk is a high-quality milk with high nutritional value and health benefits. Camel milk contains a variety of nutrients such as fat, protein, vitamins, lactose, etc. The milk production and quality of camels is influenced by their size, age and feeding conditions. When camel milk is consumed, it is supplemented with nutrients, and after digestion and absorption in the body, it produces a large amount of angiotensin converting enzyme (ACE) inhibitory peptides and DPPV inhibitory peptides, which can also assist in the treatment of hypertension, dia-betes, immunity, delay kidney and liver damage, without toxic side effects to the body. It has also been found that the various biological activities of camel milk may be related to its exosomes. This review provides a comprehensive overview of the components of camel milk, its adjuvant therapeutic effects on diseases, and presents the high quality value of camel milk through the research literature.

关键词： Camel milk Nutrition Peptides Diabetes Hypertension

Characteristics of the soil microbial population in forest land irrigated with saline water in the desert area

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Journal of Arid Land 2010年第2期2卷 107-115页

作者： Jin, ZhengZhong Lei, JiaQiang Xu, XinWen Li, ShengYu Fan, JingLong Zhao, SiFeng Chinese Acad Sci Xinjiang Inst Ecol & Geog Key Lab Oasis Ecol & Desert Environm Urumqi 830011 Peoples R China Shihezi univ Coll Agr Shihezi 832003 Peoples R China

The study of soil microbial populations and diversity is an important way to understanding the soil energy *** this study we analyzed the characteristics of soil microbial populations of the Tarim Desert Highway shelter-forest,by identifying microbial fatty acids and using methods of conventional *** results illustrated that the amount of soil microbial activity and the diversity of soil microbial fatty acid increased significantly with the plantation age of the shelter-forest;the soil microbial population was dominated by *** fatty acids of C14︰0,C15︰0,C16︰0,C17︰0,C18︰1ω9,C18︰0,C18︰2ω6 and C21︰0 were found to be dominant soil microbial fatty acids in the shelter-forest ***-cipal analysis and regression analysis showed that(1) concentrations of fatty acids of C14︰0,C16︰0 and C18︰0 could be used as indicators of total soil microbial population;(2) soil bacteria and actinomycetes populations were closely correlated with the amount of fatty acids of C15︰0 and C17︰0;and(3) soil fungi were closely correlated with the amount of fatty acids of C18︰1ω9 and C18︰2ω6.

关键词： desert shelter forest soil microbial population phospholipids fatty acid

Biological effect on sugar beet seeds induced by ion implantation

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Chinese Science Bulletin 1999年第14期44卷 1286-1289页

作者： Xianxian Zeng Yanfei Wang Shifeng Zhang Aligen Ping Bu Jun Liu Huajun Liu Xinjing Inst Technol Urumqi 830008 Peoples R China xinjiang Acad agr Sci Inst Econ Crops Urumqi 830000 Peoples R China

Through experimental analysis of peroxidase isozyme in the leaves of sugar beets, it has been verified that the enzyme activity of dry sugar beet seeds is closely connected with the doses of N+ ion implanted, and that low dosage implantation helps to bring about enzyme activation. Meanwhile, new enzyme bands appear, and the growing quantity and trend of sugar beets increase distinctly. The best result can be obtained when the dose of ion implantation is 4x1016N+/cm2 and the number of pulse is 60 times.

关键词： sugar beet N+ ion implantation peroxidase isozyme growing quantity.

Effects of sodium on nitrate uptake and osmotic adjustment of Suaeda physophora

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Journal of Arid Land 2010年第3期2卷 190-196页

作者： Yuan, JunFeng Tian, ChangYan Feng, Gu Chinese Acad Sci Xinjiang Inst Ecol & Geog Key Lab Oasis Ecol & Desert Environm Urumqi 830011 Peoples R China China agr univ Coll Resource & Environm Sci Beijing 100094 Peoples R China

Na+ ions play an important role in the growth of halophyte. The effect of Na+ ions on nitrate uptake and osmotic adjustment in the euhalophyte Suaeda physophora was investigated under glasshouse conditions. Seedlings were exposed to 1 mmol/L NaCl (control),300 mmol/L NaCl,150 mmol/L NaCl plus 150 mmol/L KCl or 300 mmol/L KCl treatments for 24 d. Dry weight was not affected greatly by different salt treatments,but water content and succulence in leaves of S. physophora were significantly increased at 300 mmol/L NaCl and 150 mmol/L NaCl plus 150 mmol/L KCl treatments. The concentrations of Na+ and NO3’ in leaves of S. physophora were the highest at 150 mmol/L NaCl plus 150 mmol/L KCl,but lowest at 300 mmol/L KCl treatment. Moreover,the increase of NO3’ concentration did not result in the decrease of Cl-concentration at 150 mmol/L NaCl plus 150 mmol/L KCl treatments. The estimated contribution of NO3’ to osmotic potential (CNO3) in leaves of S. physophora was 9.8% at 150 mmol/L NaCl plus 150 mmol/L KCl,and CNa and CCl were 31.0% and 23.3%,respectively. However,CNO3,CNa and CCl were respectively 1.6%,7.9% and 11.9% at 300 mmol/L KCl treatment. It is concluded that Na+ stimulates NO3’ absorption and the stimulation is independent on the internal or the external Cl-concentration in the euhalophyte S. physo-phora. These characteristics may explain the high levels of N in leaves of saline desert plants in arid ecosystem.

关键词： euhalophyte Suaeda physophora NaCl KCl NO3’

Isolation and characterization of uric acid-lowering functional components from Polygonum cuspidatum

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FOOD BIOSCIENCE 2023年第3期53卷 949-959页

作者： Hu, Qingqing Ji, Jian Xu, Deping Ye, Yongli Sun, Jiadi Sheng, Lina Zhang, Yinzhi Sun, Xiulan Jiangnan univ Natl Engn Res Ctr Funct Food Synerget Innovat Ctr Food Safety & Qual Control Sch Food Sci & TechnolState Key Lab Food Sci & Te Lihu Ave 1800 Wuxi 214100 Jiangsu Peoples R China Yixing Inst Food & Biotechnol Co Ltd Yixing 214200 Peoples R China xinjiang agr univ Coll Food Sci & Pharm 311 Nongda Dong Rd Urumqi 830052 Xinjiang Uygur Peoples R China

Polygonum cuspidatum (P. cuspidatum) is an herbaceous perennial plant known as Asian knotweed that is used in Chinese medicine due to its active components. Recent studies of the uric acid-lowering activity of P. cuspidatum extracts have mainly focused on analysis of its crude extract or specific chemical components, with limited research about its uric acid-lowering activity in vivo. In present study, monomeric compounds with higher uric acid-lowering ability were isolated from P. cuspidatum extract by column chromatography and thin-layer chro-matography (TLC) and tested in a hyperuricemia mouse model and xanthine oxidase (XOD) inhibition assay in vitro. Structural characterization of the isolated components was performed by nuclear magnetic resonance (NMR) spectroscopy and the potential mechanism of decreasing uric acid was analyzed using untargeted metabolomics. Two main novel compounds were isolated and identified, 1-(4-hydroxy-2-methoxyphenyl)-2-(4-hydroxy-3,5-dimethylphenyl)butane-1,2,3-triol (compound 1) and 1-(4-hydroxy-2-methoxyphenyl)-2-(4-hy-droxy-3,5-dimethylphenyl)-3-methylbutane-1,2-diol (compound 2), and compounds 1 was proved more signif-icant inhibitory effect on the activity of XOD (p < 0.01) with inhibition of 49.80%. Metabolomics analysis indicated that the fractions (compound 1 and compound 2) affected hyperuricemic mice mainly through changes in galactose metabolism (p = 5.74E-4) and the effects were closely related to metabolic pathways of organic acid, carbohydrate, and lipid metabolism. These results contribute to providing theoretical support for the utilization of P. cuspidatum as a food and medicinal material, which can increase its use as an alternative treatment for hyperuricemia.

关键词： Polygonum cuspidatum Uric acid Nuclear magnetic resonance Metabonomics Xanthine oxidase

Nitrogen deposition as an important nutrient from the environment and its impact on ecosystems in China

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Journal of Arid Land 2010年第2期2卷 137-143页

作者： Liu, XueJun Song, Ling He, ChunE Zhang, FuSuo China agr univ Coll Resources & Environm Sci Beijing 100193 Peoples R China Chinese Acad Sci Xinjiang Inst Ecol & Geog Urumqi 830011 Peoples R China Chinese Acad Med Sci Inst Med Plant Dev Beijing 100193 Peoples R China Peking Union Med Coll Beijing 100193 Peoples R China

As an example of atmospheric nitrogen(N) deposition,the paper summarizes the definition,form and amount of nutrient from the environment(NFE) and the relationship between NFE and anthro-pogenic reactive N *** on our own study and published articles,we find that N wet and dry deposition has been an important nutrient resource in agricultural and natural ecosystems in *** total amount of N deposition and other environment-derived N in China was up to 18 Tg N/a,equal to ap-proximately 60% of the national N fertilizer *** deposition is expected to contribute substantially to nutrient cycling and net primary productivity in various ***,it is crucial to utilize this environment-derived nutrient resource by integrated nutrient resource management in order to realize the sustainable development of both agricultural and non-agricultural ecosystems.

关键词： atmospheric deposition nitrogen nutrient management ecological impacts