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Evaluation and comparison of antibacterial activities of edible vegetable oils in China

Oil Crop Science 2018年第1期3卷 57-62页

作者： Ruinan Yang Sujun Wang Liangxiao Zhang Xiupin Wang Fei Ma Jin Mao Qi Zhang Peiwu Li Oil Crops Research Institute Chinese Academy of Agricultural Sciences Key laboratory of Biology and Genetic Improvement of Oil Crops Ministry of Agriculture Quality Inspection and Test Center for Oilseed products Ministry of Agriculture Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources laboratory of Quality and Safety risk assessment for Oilseed products (Wuhan) Ministry of Agriculture Key laboratory of Detection for Mycotoxins Ministry of Agriculture

To evaluate antibacterial activities of edible vegetable oils in China for healthy consumption, we investigated the antibacterial activities of extracts from 6 edible vegetable oils and rapeseed oils at different refining levels on 4 bactria (Staphylococcus aureus,Bacillus subtilis, Escherichia coli and Pseudomonas strains) by disc diffusion test. Results showed that camellia oil had considerable antibacterial activity against E. coli with antibacterial rate of 108.3%. Perilla oil, sunflower seed oil, and flaxseed oil showed the highest antibacterial activities against B. subtilis with the antibacterial rates of 108.3%, 102.8%and94.4%respectively. Moreover, the extracts of rapeseed oils obtained by different processing technologies showed significantly different antibacterial effects. Two crude oils and grade4 rapeseed oil showed antibacterial rates of more than 40%, whereas grade 1 and 2 rapeseed oils showed antibacterial rates of less than 20%. Therefore, it was recommended to use rapeseed oil rather than refined rapeseed oil because of higher antibacterial activities. It was suggested that proper refining processes should be taken to obtain the edible oils with higher antibacterial activities.

关键词： antibacterial activity edible oil crude oil refined rapeseed oil

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An ultrasensitive time-resolved fluorescent immunoassay method for determination aflatoxins B1 in edible oil

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Oil Crop Science 2016年第3期1卷 57-64页

作者： Du Wang Zhaowei Zhang Peiwu Li Qi Zhang Jin Mao Li Yu Wen Zhang Xiaoxia Ding Oil Crops Research Institute Chinese Academy of Agricultural Sciences Wuhan China Key laboratory of Biology and Genetic Improvement of Oil Crops Ministry of Agriculture Wuhan China Key laboratory of Detection for My cotoxins Ministry of Agriculture Wuhan China laboratory of risk assessment for Oilseeds products (Wuhan) Ministry of Agriculture Wuhan China Quality Inspection and Test Center for Oilseeds products Ministry of Agriculture Wuhan China

edible oil is one major nutritional ingredient to human and widely consumed directly. The contamination of aflatoxin B1 （AFB1） in edible oils has been attracted exten-sive efforts due to its hazard to human health and life. To avoid the digestion of edible oils contaminated by AFB1 the development of rapid and sensitive sensing method for AFB1 is required. Herein, a quantitative, sensitive and rapid method for AFB1 detection in edible oils was proposed by using ultrasensitive time-resolved fluorescent immunosensing （TRFIS） method. This method poses unique advantages from both time-resolved fluorescent sens-ing method and immunochromatographic assay format. The nanospheres were modified with fluorescent europium and then captured the home-made monoclonal antibody against AFB1 （3G1）. After optimization, by using a competitive immunosensing manner, this TRFIS method has a detectable linear range of 0.54-20.0 μg/kg with minimum detectable concen-tration of 0.18μg/kg. It can be completed merely within 10 min with recovery from 87.0% to 121.9%. The agreement was observed between the results by TRFIS and high perfor-mance liquid chromatography （HPLC） methods. This research provides a promising sens-ing method for sensitive and rapid determining AFB1 in edible oils.

关键词： time-resolved fluorescent immunosensing (TRFIS) europium label aflatoxin B1 (AFB1) edible oils

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Sesame oil determination by solid-phase extraction and liquid chromatography-tandem mass spectrometry

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Oil Crop Science 2017年第3期2卷 181-186页

作者： Xinjing Dou Liangxiao Zhang Peiwu Li Huali Xie Huhu Lang Xiaomei Chen Li Yu Wen Zhang Qi Zhang Key laboratory of Biology and Genetic Improvement of Oil Crops Ministry of Agriculture Oil Crops Research InstituteChinese Academy of Agricultural Sciences Wuhan China laboratory of Quality & Safety risk assessment for Oilseed products (Wuhan) Ministry of Agriculture Wuhan China Key laboratory of Detection for Mycotoxins Ministry of Agriculture Wuhan China Quality Inspection and Test Center for Oilseed products Ministry of Agriculture Wuhan China Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources Wuhan China

Authenticity of blended oil has drawn increasing attentions. In this study, sesamin was selected as marker of sesame oil to verify authentication of blended oil with sesame oil on label. A simple method based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) combined with solid-phase extraction (SPE) was used to detect sesamin. It has high sensitivity with low limit of detection (LOD) and limit of quantification (LOQ) being 20 ng/mL and 70 ng/mL respectively. Recoveries from 80.16% to 102.50% in 4 different oils indicated it’s reliable to quantify sesamin in edible oil. Four blended oils were used as validation samples and results showed this method could effectively detect whether sesame oil exists. In this study, a simple method was proposed for sesamin determination by LC-MS/MS and SPE in edible oils for the first time and provided an effective guide to identify authenticity of blended oils.

关键词： sesamin authentication sesame oil blended oil LC-MS/MS SPE

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Biodiversity of edible Caterpillars of Imbrasia and Host Plants in Boukoko (Central African Republic)

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Advances in Entomology 2024年第1期12卷 38-55页

作者： Lucie Aba-Toumnou Solange-Patrica Wango Denis Beina Jean-Pierre Moalbaye Gorgon Igor Touckia Rufin Reo-Ndouba Felix Allah-Barem Olga Diane Yongo laboratory of Biological and Agronomical Sciences for Development Faculty of Sciences University of Bangui Bangui Central African Republic laboratory of Applied Animal Biology and Biodiversity University of Bangui Bangui Central African Republic Center of Studies and Research on Pharmacopoeia and Traditional African Medicine (CERPHAMETA) University of Bangui Bangui Central African Republic Plant and Fungal Biodiversity laboratory Faculty of Science University of Bangui Bangui Central African Republic Higher Institute for Rural Development (ISDR) University of Bangui Mba&iumlki Central African Republic Central African Republic Institute of Agriculture Research Bangui Central African Republic

In Central African Republic, edible caterpillars of Imbrasia gender are income of rural populations, present an opportunity to improve food security and belonging to the category of Non-wood forest products. The goal of this study is to document the ecology of caterpillars of genre Imbrasia in relation to its host plants in Boukoko. The questionnaire was addressed to the actors of the collection and consumption of caterpillars in this Commune, to their local knowledge concerning this food resource as well as the plants of their locality on which caterpillars are collected. The survey took place in September to October 2022 and as a general rule, the 120 respondents were elderly people whose age range varied from 35 to 70 years old. Plant samples are collected in their natural environment. Based on local names;herbaria are mounted, plants photographed and samples collected. The types of edible caterpillars have been inventoried in the field in collaboration with the local populations who consume them. Based on local names, the caterpillars are captured manually from morphological traits and then stored in bottles containing 70% ethanol. The specimens were identified. The data was entered into the Excel spreadsheet which also made it possible to produce histograms with the frequencies of the plant species most valued by the different caterpillars. A Principal Component Analysis (PCA) was then performed using R software to highlight the correlation between caterpillars and host plants. The main economic importance trees hosting edible caterpillars of Imbrasia gender in Boukoko region are: Entandrophragma cylindricum, Pentaclethra macrophylla, Maesopsis eminii, Albizia ferruginea, Macaranga spinosa, Amphimas ferrugineus, Pentaclethra macrophylla, Racosperma auriculiforme, Eribroma oblonga. The Principal Component Analysis (PCA) carried out to assess the variability between the different species of caterpillars according to their host plants shows that the first two axes

关键词： Forest Degradation Losing Biodiversity of Consumed insects Local Population

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Adulteration detection of edible oils with castor oil by gas chromatography

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Oil Crop Science 2016年第2期1卷 60-64页

作者： Wei HU Xuefang WANG Liangxiao ZHANG Peiwu LI Xiaoman SUN Jun JIANG Xiaoxia DING Qi ZHANG Oil Crops Research Institute Chinese Academy of Agricultural Sciences Wuhan 430062 P. R. China Key laboratory of Biology and Genetic Improvement of Oil Crops Ministry of Agriculture Wuhan 430062 P. R. China Key laboratory of Detection for Mycotoxins Ministry of Agriculture Wuhan 430062 P. R. China laboratory of risk assessment for Oilseeds products ( Wuhan) Ministry of Agriculture Wuhan 430062 P. R. China Quality Inspection and Test Center for Oilseeds products Ministry of Agriculture Wuhan 430062 P. R. China Hubei Collaborative Innovation Center for Green Transformation of Bio - Resources Wuhan 430062 P. R. China

Developing a method of adulteration detection is critical for protecting customers＂ rights which is a particular concern in food quality. In this study, fatty acid profiles of castor oils were estab-lished by GC and employed to classify 4 types of edible oils and castor oil with multivariate statistical methods. The results indicated that fatty acid profiles of edible oils could be used to classify the 5 kinds of oils. Meanwhile, simulated data test indicated that fatty acid profiles could be used to detect adultera-ted by 5% . Finally, a RF model was built to detect adulteration of edible oils with castor oils by fatty acid composition. The results from cross validation indicated that the oils adulterated by castor oil at low levels （5% 7V/V） could be completely separated from 4 kinds of edible oils. Therefore this model could be used to detect adulteration of 4 kinds of edible oil with castor oils.

关键词： fatty acid profiles adulteration detection castor oil GC chemometrics

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GC-MS Analysis on Form and Content of Phytosterol in the Beans from Different Producing Areas

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Asian Agricultural Research 2017年第8期9卷 77-83页

作者： Donghui WANG Yue ZHANG Bei FAN Lijing ZHANG Chao SHEN Fengzhong WANG Institute of Food Science and Technology CAAS/Laboratory of Quality and Safety Risk Assessment on Agro-products Processing (Beijing)Ministry of Agriculture/Key Laboratory of Agrifood Safety and QualityMinistry of Agriculture

This paper established the GC-MS method to analyze phytosterol in beans and study the content and distribution of phytosterol in green beans,red beans,black beans and soybeans in 5 main producing areas of China(Inner Mongolia,Heilongjiang,Jilin,Hebei,Shandong).This paper used GC-MS method to analyze the content and distribution of campesterol,stigmasterol,sitostanol,brassicasterol,ergosterol,cycloartanol,cycloartenol,2,4-methylenecycloartanol,spinasterol,cholesterol and cholestanol in the beans from different producing *** showed that the content of sterol in green beans was higher than in three other kinds of beans,and the content of sterol in red beans was the *** producing areas had a significant impact on the content of sterol in beans,and the dominant producing areas included Inner Mongolia and *** study provided a basis for quality assessment and nutritional evaluation of beans and provided a reference for traceability and variety distinction study of other edible beans.

关键词： Beans Phytosterol GC-MS Producing areas Morphological distribution

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Resource diversity of Chinese macrofungi:edible,medicinal and poisonous species

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Fungal Diversity 2019年第5期98卷 1-76页

作者： Fang Wu Li-Wei Zhou Zhu-Liang Yang Tolgor Bau Tai-Hui Li Yu-Cheng Dai School of Ecology and Nature Conservation Beijing Forestry UniversityBeijing 100083China Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016LiaoningChina State Key laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China CAS Key laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650204YunnanChina Engineering Research Center of Chinese Ministry of Education for edible and Medicinal Fungi Jilin Agricultural UniversityChangchun 130118JilinChina Guangdong Institute of Microbiology Guangzhou 510070GuangdongChina Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry UniversityBeijing 100083China

The huge land areas in China provide highly diverse habitats for *** these macrofungi,many are directly related to people’s daily life and have been utilized by ancient Chinese for at least 6800 *** this study,we evaluate the current known resource diversity of Chinese macrofungi.A total of 1662 taxa are summarized,and all species names and their authorities have been checked and corrected according to authentic mycological *** the 1662 taxa,1020,692,and 480 are considered to be edible,medicinal and poisonous mushrooms,respectively.A few of edible macrofungi in China are commonly used for commercial *** known medicinal functions are labeled for medicinal *** most common medicinal functions possessed by Chinese macrofungi are antitumor or anticancer,followed by antioxidant and antimicrobial.A total of 277 Chinese macrofungi are edible simultaneously with certain medicinal functions and without known *** species could be treated as“Gold Mushrooms”.Contrarily,193 edible and/or medicinal species are also recognized as poisonous *** avoid poisoning caused by these species,ingestion either in a proper way or in small amounts is ***,the mycotoxins metabolized by these poisonous species could be a huge wealth of natural products yet to be *** to utilize these Chinese macrofungal resources is a critical to benefit humans worldwide.

关键词： Economic fungi edible mushroom Fungal toxicity Medicinal function Nomenclature

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Entomophagy and Public Health: A Review of Microbiological Hazards

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Health 2019年第10期11卷 1272-1290页

作者： Pauline Kooh Ermolaos Ververis Vincent Tesson Géraldine Boué Michel Federighi French Agency for Food Environmental and Occupational Health & Safety Risk Assessment Department Maisons-Alfort France School of Medicine National and Kapodistrian University of Athens (NKUA) Athens Greece European Food Safety Authority Parma Italy Oniris UMR 1014 SECALIM INRA/Oniris Nantes France.

The world population’s constant increase and the continuous need to ensure food safety and security are among the major challenges to be faced in the next 30 years. In addition, human diet is evolving with a decreased inclusion of proteins from animal sources. In this context, consumption of insects by humans (entomophagy) could be an alternative solution to the intake of protein derived from conventional livestock, due to the lower environmental impact of insect rearing compared to traditional farming. Furthermore, various insect species have promising nutritional profiles regarding both macro and micronutrients. Nowadays, it is recognized that about 2 billion people consume insects at a worldwide scale, with more than 2000 different species to have been reported. Since the beginning of the 2000s, mass rearing of insects for human consumption has been developing all over the world. Nevertheless edible insects are foodstuffs of animal origin and are usually consumed in their entirety, including the digestive tract, meaning that they may contain biological agents with hazardous potential (e.g. bacteria, parasites, viruses, prions, yeasts, molds, mycotoxins, histamine, and antibiotic resistance genes) and they must undergo a thorough analysis. Therefore, establishing the synthesis of the current knowledge on entomophagy and the related biological hazards is the main purpose of this review.

关键词： Entomophagy Microbial Hazards Public Health Food Safety

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Effects of sugar addition on adipolysis and volatile profiles of dry cured sausage

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Journal of Future Foods 2022年第2期2卷 184-191页

作者： Zhi Qu Chunqian Feng Virginia KWalker Wenyi Kang Nan Liu Shanqing Zheng Institute of Chronic Disease risks assessment School of Nursing and HealthHenan UniversityKaifeng 475004China Department of Biology Queen’s UniversityKingston K7L 3N6ONCanada School of Environmental Studies Queen’s UniversityKingston K7L 3N6ONCanada National R&D Center for edible Fungus Processing Technology Henan UniversityKaifeng 475004China Institute of Environment and Health South China HospitalHealth Science CenterShenzhen UniversityShenzhen 518116China School of Basic Medical Sciences Henan UniversityKaifeng 475004China

As sugar play a primary role in food flavor and biochemical reaction during the industrial manufacture of dry cured meat products,we aim to evaluate the function of sugar and how the quality changed with the addition of sugar on dry cured sausage after three months of preservation,and the corresponding effect on acidity value and the total acid *** roles of sugars’effects on FA hydrolysis and flavor formation are required to be *** selected the addition of sugar with the gradient contents from 3%to 15%,we found that the total acid,acidity value,peroxide value,FA and organic acid were significantly *** unsaturated fatty acids(MUFA)was the main content of FAs,following by saturated FA and polyunsaturated FA.C18:1n9c was the major FA,following by C16:0 and C18:*** kinds of organic acids in dry-cured sausages containing different concentrations of sugar were analyzed by HPLC and the total organic acid reached a maximum of 12.15%by after adding 6%*** acid was 8.06%and lactic acid was 2.56%.This study concludes that sugar is the main factor in flavor formation of dry cured sausage and affects the sausage quality for three months in storage.

关键词： Dry-cured sausage Adipolysis Volatile compounds Organic acid Fatty acid

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A systematic review on food lead concentration and dietary lead exposure in China

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Chinese Medical Journal 2014年第15期127卷 2844-2849页

作者： Jin Yingliang Liu Pei Wu Yongning Min Jie Wang Cannan Sun Jinfang Zhang Yafei Departmem of Epidemiology and Biostatistics School of Public Health Southeast University NanjingJiangsu 210009 China Department of Nutrition and Food Hygiene School of Public Health Southeast University NanjingJiangsu 210009 China Keylaboratory of Environmental Medicine Engineering of Ministryof Education Southeast University Nanjing Jiangsu 210009 China China National Center for Food Safety risk assessment Beijing100017 China

Background By synthesizing results from primary studies,systematic review can provide empirical information of concerned *** study aimed to review the available surveillance data from studies reporting the contamination surveillance of food lead in *** Relevant studies were identified by systematically searching Chinese Biological Medicine Database and China National Knowledge Infrastructure using the key term of ＂lead＂ for surveillance data published in Chinese between 2006 and *** avoid potential selection bias,all articles were evaluated by two independent reviewers,and the disagreements were resolved by discussion or the third author was asked to *** Among 269 identified publications on surveillance data of lead in food,43 articles met the defined inclusion *** food samples were divided into 11 groups （cereal grains and pulses,fish,eggs,vegetables,meat,edible fungi,milk and dairy products,fruits,offal,tea and preserved egg）.Surveillance data of publications were reviewed to calculate the weighted mean and rate exceeding maximum *** results indicated that the highest lead concentration was 1.937 mg/kg in *** total pementage of samples exceeding the maximum levels was 5.57%.Dietary exposure to lead was assessed by combining the weighted mean concentration of surveillance data with national consumption data in *** this review,dietary intake of lead was 1.232 μg/kg b.w./*** Further control measures should be taken to reduce exposure to lead,from both dietary and non-dietary sources.

关键词： diet risk assessment lead China

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