Results 101 to 110 of about 25,019 (269)

牦牛脂肪不同脱腥处理比较及其腥味物质分析Comparison of different deodorization methods for yak fat and its fishy odor substances analysis

Zhongguo youzhi
旨在提高牦牛脂肪的综合利用，以新鲜的牦牛脂肪为原料，分别采用酵母葡聚糖、活性干酵母、β-环糊精、茶多酚对牦牛脂肪进行脱腥处理，以牦牛脂肪所炼制的牦牛油腥味值作为评价指标，采用单因素实验优化4种脱腥方法的条件，并采用顶空固相微萃取-气相色谱-质谱联用(HS-SPME-GC-MS)技术对脱腥处理前后牦牛脂肪所炼制的牦牛油的挥发性风味物质组成及含量进行分析，采用相对气味活度值（ROAV）确定牦牛脂肪可能的腥味物质，并对脱腥处理前后牦牛油进行感官评价。结果表明：4种脱腥方法的最佳条件为酵母葡聚糖质量分数1.2%、
周佳，徐瑾，赵文俊，张丽，韩广兴，韩玲，余群力ZHOU Jia， XU Jin， ZHAO Wenjun， ZHANG Li， HAN Guangxing， HAN Ling， YU Qunli
doaj   +1 more source

INTERNATIONAL DIVISION OF LABOUR IN THE CONTEXT OF GLOBALISATION: THE CASE OF THE CZECH REPUBLIC [PDF]

Division of labour is the specialization of cooperative labour in specific, circumscribed tasks and roles, intended to increase the productivity of labour.
Michal TVRDON
core  

不同产地栀子油的脂肪酸组成、功能成分分析 及活性研究Analysis of fatty acids composition,functional components of Gardenia jasminoides Ellis seed oil from different origins and comparison of their activities

Zhongguo youzhi
旨在为栀子的进一步开发和利用提供参考数据，使用正己烷索氏提取法和乙醇提取法提取产自湖南宁乡、江西九江、江西抚州、福建福鼎、江西金溪和江西樟树的6种栀子籽中的油脂，并对其理化性质、脂肪酸组成、功能成分（西红花苷Ⅰ、磷脂、 β-谷甾醇）含量及活性（DPPH自由基清除能力、紫外吸收能力）进行比较。结果表明：正己烷索氏提取法的栀子油得率高于乙醇提取法的；以正己烷索氏提取法提取栀子油，福建福鼎的栀子油得率最高，为（15.41±0.21）%，且其碘值和皂化值(KOH)最高，分别为(89.87±5.25) g/100
李亚1，罗兰1，田云才2,3，董俊姿4，田勇2,3， 李冰4，张文环2,3，吴明一1 LI Ya1, LUO Lan1, TIAN Yuncai2,3, DONG Junzi4, TIAN Yong2,3, LI Bing4, ZHANG Wenhuan2,3, WU Mingyi1
doaj   +1 more source

How important is a regional free trade area for Southern Africa?: Potential impacts and structural constraints [PDF]

"We develop a detailed trade analysis to assess the potential welfare impacts of a free trade agreement (FTA) on the agricultural sector of southern African countries and to determine opportunities and challenges faced by the region as a consequence of ...
Bahta, Yonas, Diao, Xinshen, Nin Pratt, Alejandro   +2 more
core  

Fats, Fire and Bronze Age Funerary Rites: Organic Residue Analysis of Wide Horizontal Rim Vessels From Burial Contexts in Northwest Portugal

Archaeometry, EarlyView.
ABSTRACT This study presents the first GC‐MS–based analyses of wide horizontal rim vessels with well‐defined funerary contexts, from Middle Bronze Age Portugal (Quinta do Amorim 2 and Pego). Organic residues from two vessels revealed ruminant fats and plant oils, alongside molecular markers of heat exposure.
João Vinícius Back, César Oliveira, Ana M. S. Bettencourt, Hugo Aluai Sampaio, Luciano Vilas Boas, Luís Gonçalves   +5 more
wiley   +1 more source

甘肃陇南不同品种油橄榄叶化学成分系统表征 及抗氧化活性研究Systematic characterization and antioxidant activity study of chemical components in different varieties of olive leaves from Longnan, Gansu

Zhongguo youzhi
为了更好地开发利用油橄榄叶，采用超高效液相色谱-四极杆飞行时间质谱和超高效液相色谱-三重四极杆/复合线性离子阱质谱分析技术分别定性定量分析甘肃陇南不同品种油橄榄叶提取物中的化学成分，并考察其体外抗氧化活性。结果表明：从甘肃陇南油橄榄叶提取物中主要鉴定了73个化学成分，其中萜类38个、黄酮类16个、苯乙醇类7个、挥发油类5个、脂肪酸类2个、苯甲酸类1个、苯丙素类1个、其他类3个；不同品种27批油橄榄叶提取物中的11个化学成分总含量存在一定差异，陇南武都和礼县的油橄榄叶提取物中11个化学成分总含量分别为1 ...
赵强宏1，邹诚2，王文亮1，王惠明3，瞿城2ZHAO Qianghong1, ZOU Cheng2, WANG Wenliang1, WANG Huiming3, QU Cheng2
doaj   +1 more source

Cannabidiol and cannabigerol ameliorate steatotic liver disease via phosphocreatine buffering and lysosomal restoration

British Journal of Pharmacology, EarlyView.
Cannabidiol (CBD) and cannabigerol (CBG) alleviate hepatic steatosis in obese mice by shifting energy buffering towards phosphocreatine and enhancing lysosomal lipid degradation and trafficking. These effects are associated with increased creatine kinase activity and lysobisphosphatidic acid (LBPA) levels, highlighting a previously unrecognised ...
Radka Kočvarová, Shahar Azar, Bella Agranovich, Ifat Abramovich, Saveliy Kirillov, Alina Nemirovski, Saja Baraghithy, Inbar Plaschkes, Emmanuelle Merquiol, Alexander Rouvinski, Galia Blum, Liad Hinden, Joseph Tam   +12 more
wiley   +1 more source

低温螺旋压榨核桃油工艺优化及其营养成分分析Process optimization of low temperature screw pressed walnut oil and its nutritional components analysis

Zhongguo youzhi
为了促进核桃油的开发和利用，以核桃仁出油率为指标，采用单因素试验和响应面试验优化低温螺旋压榨核桃油的工艺条件（核桃仁含水量、榨头温度、出渣孔径），并在最优条件下对不同品种核桃油的脂肪酸组成和活性成分进行分析。结果表明：在出渣孔径12 mm、核桃仁含水量6%、榨头温度100 ℃条件下，核桃仁出油率最高，达57.63%；最优条件下压榨所得的新疆纸皮核桃油、美国山核桃油和临安山核桃油的不饱和脂肪酸含量均超过90%，其中油酸含量为18.08%~63.44%，亚油酸含量为26.63%~60.96%，α ...
卢红伶1，俞罡雷2，蒋起宏1，蒋陈凯1，胡文君1，骆红阳2，相兴伟3，冯永才4，沈国新1，陈琳1 LU Hongling1，YU Ganglei2，JIANG Qihong1，JIANG Chenkai1，HU Wenjun1， LUO Hongyang2，XIANG Xingwei3，FENG Yongcai4，SHEN Guoxin1，CHEN Lin1
doaj   +1 more source

To Avoid or Not to Avoid: Cross‐Reactivity Between Fragrance and Common Botanicals

Contact Dermatitis, EarlyView.
Among 356 fragrance‐allergic patients patch tested from 2020–2024, no clinically meaningful cross‐reactivity (> 10%) was observed between fragrance allergens and common non‐essential oil botanicals. These findings suggest fragrance‐allergic patients do not need to avoid botanicals such as aloe, coconut oil, or shea butter in fragrance‐free products ...
Sarah Karels, Brailyn Weber, Sara Hylwa, Solveig Ophaug, Katherine Lee, Anne Neeley   +5 more
wiley   +1 more source

紫外-LiCl联合ARTP诱变选育高产花生四烯酸的 高山被孢霉突变株Breeding of Mortierella alpina mutants with high yield of arachidonic acid by UV-LiCl combined with ARTP mutagenesis

Zhongguo youzhi
为得到遗传性状稳定、高产花生四烯酸（ARA）的高山被孢霉菌株，以实验室保藏的高山被孢霉FD-1为出发菌株，采用紫外-LiCl联合常压室温等离子体（ARTP）技术进行诱变处理，并进行TTC平板初筛和摇瓶发酵复筛。结果表明，经紫外-LiCl联合ARTP诱变处理，获得一株高产ARA的高山被孢霉突变株Z6-A23。菌株Z6-A23所产油脂中ARA含量高达44.57%，ARA产量达3.62 g/L，分别较出发菌株FD-1提高了75.40%和223.21%。经10次传代培养，突变株Z6-A23代谢合成ARA性能稳定，
张鑫，凤元邦，冯雪，张春枝，陈明 ZHANG Xin, FENG Yuanbang, FENG Xue, ZHANG Chunzhi, CHEN Ming
doaj   +1 more source