1.Bioethical considerations of cell-cultured meat.
Chao WANG ; Yuanfa LIU ; Jingwen ZHOU
Chinese Journal of Biotechnology 2021;37(2):378-383
In recent years, to solve the increasingly prominent problem of the contradiction between human social development and environmental resources, artificial meat has appeared in public view more and more. Generally speaking, the artificial meat can be divided into vegetable protein meat and cell cultured meat. Among them, vegetable protein meat has gradually begun to be commercialized, and cell cultured meat is cultured with animal cells, which is more similar to the real meat. Based on the analysis of the essence of cell cultured meat, we explore the positive significance of cell cultured meat technology for the meat production industry, consumer groups, and the sustainable development of mankind in the future. From the perspective of bioethics, the research, development and production of cell cultured meat can help ensure the sustainable development of human society, improve animal welfare, reduce resource demand, improve the nutritional function of meat products, and provide new growth points for the development of other industries. In addition, the ethical risks of food safety, technology abuse and technical supervision involved in cell cultured meat production are put forward for deep consideration, hoping to provide reference for the sustainable development of artificial meat industry from the perspective of bioethics.
Animal Welfare
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Animals
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Food Safety
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Humans
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Meat
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Meat Products
2.Recognition of Elementary School Students for The Country-of-Origin Labeling at School Foodservice in Seoul.
So Yeon KIM ; Sanghyun PARK ; Nami JOO
Korean Journal of Community Nutrition 2010;15(4):507-512
This study was conducted to offer basic data that give effective ways to inform the country-of-origin labeling, where the ingredients they are serving are from, at school foodservice and to reconsider the importance of the labeling origin based on the survey by the elementary school students. 96.0% of the elementary school students agreed to the regulation about the country-of-origin labeling and the older students were influenced more by media and also supported the labeling. About the tendency of ingesting food from the country the students didn't like, 69% of them disagreed to eat. In the ways to label the country-of-origin labeling at school foodservice, elementary school students recognized easily the indication of origin designed by menu items, letter type. 76% of elementary school students checked the country-of-origin labeling posted at restaurants. When the students eat out, 68% of them were unwilling to have the food using the ingredients from the country they don't like. The country-of-origin for main ingredients such as beef, pork, chicken and other meat products, rice, kimchi had high importance scores. We found that the students think about the country-of-origin for main ingredients is important. Consequently, education and public relations of the country-of-origin labeling for elementary school students would be required.
Chickens
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Humans
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Meat Products
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Public Relations
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Restaurants
3.Analysis on Clenbuterol pollution in swine products in Beijing, 2002.
Ying XUE ; Guo-hua WU ; Juan MENG ; Jie ZHAO ; Bing SHAO ; Li-wen ZHAO ; Xin-gui SUN ; Xiao-qing CUI ; Zheng ZHANG
Chinese Journal of Epidemiology 2003;24(8):654-656
OBJECTIVETo explore the status of clenbuterol pollution in swine products in Beijing city in 2002.
METHODSEuropean Union method (EUR 15127-EN Cy2.3) was adopted to examine the samples. Samples were screened by enzyme-linked immunosorbent assay (ELISA) and confirmed by GC-MS. Detected limit of the method was 0.5 micro g/kg. Samples, including lung, liver, pork, kidney and urine of swine, were collected from slaughterhouses, refrigeratories and markets in 11 districts of Beijing.
RESULTSThe results indicated that 185 out of 1 379 samples were positive with an annual positive rate of 13.4%. The highest was 15.7% in lung of swine, followed by urine 15.2% and pork liver 14.0%.
CONCLUSIONRates of detection had decreased from 30.0% to 2.7% during 2002.
Animals ; China ; Clenbuterol ; analysis ; Drug Residues ; analysis ; Food Contamination ; analysis ; Humans ; Meat ; analysis ; Meat Products ; Swine
4.Attitude of dietitians working for elementary schools on meat products.
Journal of the Korean Dietetic Association 1997;3(1):30-43
This study was conducted to investigate the attitude of dietitians on meat products and consumption of meat products in meal service of elementary school. Eight hundred and forty two questionnaires collected from each district of the country were statistically analyzed. Dietitians showed preference of ham and packed meat to other meat products. Dietitians had a good image on meat product regarding it as a good source of protein, imported food and diversely used food for cooking. Whereas 50% and 25.8% of dietitians concerned about the high content of preservative and sodium, respectively. More than 96% of dietitians suggested the food processing company to decrease the addition of preservatives, coloring agents, color formers and sodium. Fifty nine percent of dietitians responded they would increase the consumption of meat product if it is processed to food with low sodium, low cholesterol, low fat and no persavatives. Dietitians used ham for cooking once or twice a month. The reason they used the meat product for meal service was the preference of students and readiness of meat product for cooking. The dietitian's favorite cooking method was roasting ham or sausage with vegetable. Dietitians responded the first thing they checked for purchasing meat product was the date of processing and the term of validity.
Cholesterol
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Coloring Agents
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Cooking
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Food Handling
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Humans
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Meals
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Meat Products*
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Meat*
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Nutritionists*
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Surveys and Questionnaires
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Sodium
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Vegetables
5.Application and progress in high-throughput sequencing technology for meat adulteration detection.
Yongqi GAN ; Manman LU ; Qingniao LAI ; Bin ZHU
Chinese Journal of Biotechnology 2022;38(2):411-426
Adulteration in meat products is a widespread issue that could lead to serious threats to public health and religious violations. Technology that offers rapid, sensitive, accurate and reliable detection of meat species is the key to an effectual monitoring and control against meat adulteration. In recent years, high-throughput sequencing-based DNA metabarcoding technology has developed rapidly. With the characteristics of being high-throughput, highly precise and high-speed, this technology can simultaneously identify multiple species in complex samples, thus offering pronounced advantages in the surveillance of adulteration in meat and meat products. Starting with an introduction of the major developments in the high-throughput sequencing technology in the past two decades, this review provides an overview of the technical characteristics and research methods of DNA metabarcoding, summarizes the application of DNA metabarcoding technology in meat adulteration detection over the last few years, discusses the challenges of using DNA metabarcoding technology in the detection of meat adulteration, and provides future prospects on the development of this technology.
DNA
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Food Contamination/analysis*
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High-Throughput Nucleotide Sequencing/methods*
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Meat/analysis*
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Meat Products
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Technology
6.Product safety analysis of somatic cell cloned bovine.
Song HUA ; Jie LAN ; Yongli SONG ; Chenglong LU ; Yong ZHANG
Chinese Journal of Biotechnology 2010;26(5):576-581
Somatic cell cloning (nuclear transfer) is a technique through which the nucleus (DNA) of a somatic cell is transferred into an enucleated oocyte for the generation of a new individual, genetically identical to the somatic cell donor. It could be applied for the enhancement of reproduction rate and the improvement of food products involving quality, yield and nutrition. In recent years, the United States, Japan and Europe as well as other countries announced that meat and milk products made from cloned cattle are safe for human consumption. Yet, cloned animals are faced with a wide range of health problems, with a high death rate and a high incidence of disease. The precise causal mechanisms for the low efficiency of cloning remain unclear. Is it safe that any products from cloned animals were allowed into the food supply? This review focuses on the security of meat, milk and products from cloned cattle based on the available data.
Animals
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Cattle
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Cloning, Organism
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Consumer Product Safety
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Dairy Products
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Female
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Meat Products
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Nuclear Transfer Techniques
7.The Difference of Perception about Nutritional Problems and Food intakes, Nutrition Knowledge Score and Realities of Nutrition Education between Parents and Preschool Teachers.
Joo Hee LEE ; Eun Jung KANG ; Changim KIM
Korean Journal of Community Nutrition 2011;16(6):636-646
This study was conducted to investigate the difference of perception about nutritional problems and food intakes and nutrition knowledge score and realities of nutrition education between parents and preschool teachers. This research can be summarized as follows: there was the statistical difference of perception (chi2 = 52.451, p = 0.000) about nutritional problem of preschoolers between parents and preschool teachers. Parents (56.4%) and teachers (58.5%) identified eating only what they want as the most common nutritional problem of children, but they had different perception about the other problems. To parents, "No nutritional problem" (16.3%) is the second and "Overindulgence of processed food" (11.1%) is the third problem of preschoolers. To teachers, "Overindulgence of processed food" (23.8%) is the second and "Obesity" (14.3%) is the third problem. The perception on food intakes of preschoolers was statistically different in meats (chi2 = 8.892, p = 0.030), fish (chi2 = 32.241, p = 0.000), beans (chi2 = 14.770, p = 0.005), vegetables (chi2 = 12.706, p = 0.013), fruits (chi2 = 14.438, p = 0.006) and milk & dairy products (chi2 = 28.591, p = 0.000) between parents and preschool teachers. However, nutritional knowledge was not different between parents and preschool teachers. While 96.6% of preschool teachers felt that it was necessary to educate preschoolers, only 41.5% of them said that they fulfilled nutrition education, showing that nutrition education was not adequately carried out on the spot. Therefore providing basic materials through which nutritional management guidance and proper nutrition education for preschoolers can be carried out by investigating and analyzing knowledge on their nutrition and meal guidance activities for preschooler teachers and parents.
Child
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Dairy Products
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Eating
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Fabaceae
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Fruit
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Humans
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Meals
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Meat
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Milk
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Parents
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Vegetables
8.Benzo (a) pyrene residue surveillance in retail food in the city of Xiamen, China: report from 121 samples.
He-dong LUO ; Na ZHOU ; Na LI ; Yu-zhu JIA ; Yao-qun LI
Chinese Journal of Preventive Medicine 2009;43(3):197-200
OBJECTIVETo investigate Benzo (a) pyrene (BaP) residue in retail food of Xiamen.
METHODSBaP residue in 121 retail food samples collected from Xiamen were determined by a rapid BaP detector based on derivative constant-energy synchronous fluorescence technique.
RESULTSBaP was detected in 84.3% samples and the concentration were ranged from 0.17 to 59.0 microg/kg. There were 49.6% samples exceeding 5.00 microg/kg, and most of them were roasting food (1.44 - 54.10 microg/kg), processed meat products (0.17 - 59.00 microg/kg) and aquatic products (2.79 - 36.80 microg/kg). The BaP concentration in 34 samples collected from roadside stands were 1.78 - 49.60 microg/kg, of which the rate of the samples exceeding 5.00 microg/kg was 88.2%.
CONCLUSIONThe BaP contamination in retail food samples from Xiamen is serious.
Benzo(a)pyrene ; analysis ; China ; Food Contamination ; analysis ; Food Inspection ; methods ; Meat Products ; analysis
9.Risk assessment of Listeria monocytogenes in deli meats and vegetable salads.
Chinese Journal of Preventive Medicine 2009;43(9):781-784
OBJECTIVETo analysis risk from Listeria monocytogenes in deli meats and vegetable salads.
METHODSUse Risk Ranger which is a software programme developed by the University of Hobart, Australia and answer 11 questions on affecting the risk from hazards in the specific foods by combining data from national foodborne diseases surveillance network and some references to make semi-quantitative risk assessment for the specific food.
RESULTSRelative risk from Listeria monocytogenes in deli meats and vegetable salads is 61 and 52, respectively. Incidence of listeriosis caused by deli meats-Listeria monocytogenes pairs and vegetable salads-Listeria monocytogenes pairs is 5.4 and 0.2 cases per million people, respectively. Risk from the former is 32 times than that from the latter. By changing the selection for some risk factors in the model, it was known that the risks from two food-hazard combinations could decrease 10 times, if taking necessary actions after processing.
CONCLUSIONDeli meats is a kind of high risk food for listeriosis.
Food Microbiology ; Listeria monocytogenes ; isolation & purification ; Meat Products ; microbiology ; Risk Assessment ; Vegetables ; microbiology