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Evaluation indices of sour flavor for apple fruit and grading standards 被引量:7
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作者 YAN Zhen ZHENG Li-jing +2 位作者 NIE Ji-yun LI Zhi-xia CHENG Yang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2018年第5期994-1002,共9页
In order to establish grading standards of evaluation indices for sour flavor of apples, 10 indices of samples from 106 apple cultivars were tested, including: malic acid(Mal), oxalic acid(Oxa), citric acid(Cit... In order to establish grading standards of evaluation indices for sour flavor of apples, 10 indices of samples from 106 apple cultivars were tested, including: malic acid(Mal), oxalic acid(Oxa), citric acid(Cit), lactic acid(Lac), succinic acid(Suc), fumaric acid(Fum), total organic acids(To A, the sum of the six organic acids tested), titratable acid(TiA), acidity value(AcV), and pH value. For most of the cultivars studied(85.8%), the order of the organic acid contents in apples was Mal〉Oxa〉Cit〉Lac〉Suc〉Fum. Mal was the dominant organic acid, on average, accounting for 94.5% of To A. Among the 10 indices, the dispersion of pH value was the smallest with a coefficient of variation of only 8.2%, while the coefficients of variation of the other nine indices were larger, ranging between 31 and 66%. There were significant linear relationships between Mal and two indices(ToA and AcV) as well as between ToA and AcV. There were significant logarithmic relationships between pH value and four indices: Mal, TiA, ToA, and AcV. All the equations had very high fitting accuracy and can be used to accurately predict related indices. According to this study, Mal, ToA, and AcV of apple were normally distributed, TiA was close to normally distributed, whereas pH value had a skewed distribution. Using the fitted normal distribution curves, the grading standards of Mal, TiA, ToA, and AcV were established. The grading node values of pH value were obtained using the logarithmic relationship between pH value and Mal. The grading standards of these five indices can be used to evaluate the sour flavor of apple. This study provides a scientific basis for evaluating apple flavor and selecting apple cultivars. 展开更多
关键词 apple organic acid sour flavor evaluation indices grading standard
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Developing ISO International Standards for the Animal and Vegetable Fats and Oils Sector
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作者 Gretel BESCOBY 《粮油食品科技》 2022年第1期58-66,共9页
Increasing volumes of oils and fats are produced annually with a large section that are traded internationally. The International Organization for Standardization(ISO) body develops international standards covering al... Increasing volumes of oils and fats are produced annually with a large section that are traded internationally. The International Organization for Standardization(ISO) body develops international standards covering almost all aspects of technology and manufacturing with 23,882 standards currently published. Standards in the animal and vegetable fats and oils sector is developed by Technical Committee ISO/TC 34, Food products, Subcommittee SC 11, Animal and vegetable fats and oils. Standards are developed through consensus by national members that represent ISO in their country. Each Standard is developed within a determined timeframe and goes through various pre-determined stages such as project proposal, development, national voting and commenting on the draft Standard to final publication. ISO TC34/SC11 Standards range from sampling of oils and fats, sample preparation to analysis of its composition, the minor components, and quality and identity parameters as well as contaminants. The analysis results are used by industry for product development, labelling, research and to provide peace of mind for consumers on its safety. An important future trend is the focus on the safety concerns from either environmental contamination(e.g. mineral oils) or processing contaminants such as esters of 3-MCPDs(3-monochloropropane-1,2-diol or 3-chloropropane-1,2-diol). 展开更多
关键词 animal and vegetable fats and oils International Organization for Standardization(ISO) National Standard Bodies time frame standard development stages review
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向国际标准化组织中央秘书处推荐人才的建议
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作者 刘璐 夏薇佳 +1 位作者 崔艳 张文琪 《China Standardization》 2022年第S01期33-37,共5页
Training and sending talents to international organizations are of great significance for countries to participate in global governance.The standards set by the International Organization for Standardization(ISO),the ... Training and sending talents to international organizations are of great significance for countries to participate in global governance.The standards set by the International Organization for Standardization(ISO),the Largest and most prestigious international standardization organization in the world,are referred to as the"passport"to international trade and have a significant influence on the growth of the world’s economy and social system.This paper introduces the recruitment mechanism of the ISO Central Secretariat(ISO/CS),and discusses the existing problems of China’s international talent cultivation and provides suggestions on how to cultivate and send experts to work at ISO. 展开更多
关键词 International Organization for Standardization talent cultivation talent sending
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Window Air Conditioners Transition and Restriction in Saudi Arabia
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作者 Essam Al Ammar Abdulhakim Bin Dayil 《Journal of Power and Energy Engineering》 2022年第5期1-21,共21页
This paper will provide a proposed solution for saving energy consumption due to residential air conditioners by reducing the window air conditioners type which is the most consumed energy and has a big percent of spr... This paper will provide a proposed solution for saving energy consumption due to residential air conditioners by reducing the window air conditioners type which is the most consumed energy and has a big percent of spreading inside KSA than the split type, also it will discuss some restrictions for trading and manufacturing of air conditioner devices inside KSA besides some restrictions on market and buildings to achieve the objective of reducing the consumption of energy which become a big trend in kingdom vision 2030. The results of this suggesting solution will help the decision-makers to start its plan for execution as it has a big difference between using window type from 2022 till 2030 and if we stop its sales and replace by an efficient one of split AC type in energy consumption in addition to CO<sub>2</sub> emission reduction and decreasing of energy cost, hence our kingdom can save petroleum raw materials and keeping the environment to become clean from pollutants so that these resources are delivered to successive generations correct and clean as we received them from those before us. 展开更多
关键词 Air Conditioners (AC) Terawatt-Hour (TWh) Saudi standards Metrology and Quality Organization (SASO) Energy-Efficiency Ratio (EER) High Efficiency Air Conditioning (HEAC) Carbon Dioxide (CO2) Heating Ventilation and Air Conditioning (HVAC) Saudi Building Code (SBC) Saudi Energy Efficiency Center (SEEC)
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Characterization and Comparison Analysis of WHO Monographs on Selected Medicinal Plants and Iso Standards of Chinese Materia Medica
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作者 YANG Jing-yi SANG Zhen +2 位作者 WANG Rui SHI Yan-hong HUANG Yi-ran 《Chinese Journal of Integrative Medicine》 SCIE CAS CSCD 2023年第6期540-548,共9页
Medicinal plants or Chinese materia medica(CMM)are now attracting worldwide attention as they have increasingly prominent advantages over chemical drugs in disease treatment and healthcare.Since the 1990s,World Health... Medicinal plants or Chinese materia medica(CMM)are now attracting worldwide attention as they have increasingly prominent advantages over chemical drugs in disease treatment and healthcare.Since the 1990s,World Health Organization(WHO)and International Organization for Standardization established the Technical Committee of Traditional Chinese Medicine(ISO/TC 249)have carried out the development of quality standards on medicinal plants or CMMs respectively,and a considerable number of monographs and international standards have been published.Since the two international organizations adhere to different principles,the standards they develop naturally have different emphasis.Driven by market demand and international trade,ISO mainly takes quality,efficacy and safety into consideration when developing standards,while WHO pays more attention to clinical practice,quality control and medication guidance.Up to now,there is a lack of comparative analysis on the records,background,principles,basic content,and main requirements of quality standards on medicinal plants or CMMs respectively published by WHO and ISO.Therefore,based on international standards of CMM developed by ISO/TC 249 platform and WHO Monographs on Selected Medicinal Plants,this paper systematically compares the purposes,selected principles,standard-developing process,basic content,and main quality requirements to summarize their similarities and differences,and find their merits,aiming to serve as a reference to the development of international standards for CMMs that helps them go global. 展开更多
关键词 Chinese materia medica medicinal plants international standards International Organization for Standardization Technical Committee of Traditional Chinese Medicine World Health Organization
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CAS is to organize the establishment of new national professional standardization technical committees, subcommittees & working groups under the commissioning of SAC
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《China Standardization》 2006年第2期37-,共1页
关键词 SAC subcommittees CAS is to organize the establishment of new national professional standardization technical committees working groups under the commissioning of SAC
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Current Situation of International Organization for Standardization/Technical Committee 249 International Standards of Traditional Chinese Medicine 被引量:5
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作者 Liu Yu-qi WANG Yue-xi +2 位作者 SHI Nan-nan HAN Xue-jie LU Ai-ping 《Chinese Journal of Integrative Medicine》 SCIE CAS CSCD 2017年第5期376-380,共5页
Objective: To review the current situation and progress of traditional Chinese medicine(TCM) international standards, standard projects and proposals in International Organization for Standardization(ISO)/technic... Objective: To review the current situation and progress of traditional Chinese medicine(TCM) international standards, standard projects and proposals in International Organization for Standardization(ISO)/technical committee(TC) 249. Methods: ISO/TC 249 standards and standard projects on the ISO website were searched and new standard proposals information were collected from ISO/TC 249 National Mirror Committee in China. Then all the available data were summarized in 5 closely related items, including proposed time, proposed country, assigned working group(WG), current stage and classification. Results: In ISO/TC 249, there were 2 international standards, 18 standard projects and 24 new standard proposals proposed in 2014. These 44 standard subjects increased year by year since 2011. Twenty-nine of them were proposed by China, 15 were assigned to WG 4, 36 were in preliminary and preparatory stage and 8 were categorized into 4 fields, 7 groups and sub-groups based on International Classification Standards. Conclusion: A rapid and steady development of international standardization in TCM can be observed in ISO/TC 249. 展开更多
关键词 International Organization for Standardization/Technical Committee 249 international standards traditional Chinese medicine
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A Key Organization Undertaking Chinese Auto Standardization
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《中国汽车(英文版)》 1996年第4期25-25,共1页
Jointly under the jurisdiction of AIB of MMI and CSBTS, the National Automotive Standardization Technical Committee whose headquarter is located in Automotive Standardization Institute of CATARC, Tianjin China, is not... Jointly under the jurisdiction of AIB of MMI and CSBTS, the National Automotive Standardization Technical Committee whose headquarter is located in Automotive Standardization Institute of CATARC, Tianjin China, is not only responsible for the formulation and examination of national and occupation standards in auto sector, but also correspondent to ISO/TC22, TC177 and IEC/TC69. 展开更多
关键词 ORGANIZATION AUTO A Key Organization Undertaking Chinese Auto Standardization
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