Allergenicity of genetically-modified (GM) soybean was evaluated in male Sprague Dawley rats. To confirm the GM soybean used in this study, the polymerase chain reaction (PCR) was performed using the chromosomal DNA of soybeans. The PCR result provided the clear discrimination of genetically-modified (GM) soybeans. To evaluate the allergenicity of GM soybean and non-GM control one, the soybean homogenate was sensitized subcutaneously 3 times a week for 3 weeks. The doses of soybean were 0, 2 and 20 mg/kg in the protein basis. A week after the last sensitization, antisera were recovered from individual animals. When the sera were injected intradermally on the clipped back of unsensitized rats with various dilutions, followed by a challenge with 20 mg/kg of soybean homogenate containing 1% Evans blue, no sign of passive cutaneous anaphylaxis reaction was detected. In addition, when the sera were treated in the cultures of peritoneal mast cells, the increase of histamine release by anti-(GM soybean) sera was not observed when compared to that by anti-(non-GM soybean) sera. The present results indicate that the GM soybean might not act as a strong allergen in male Sprague Dawley rats.
Adeyemi, Kazeem D.;Shittu, Rafiat M.;Sabow, Azad B.;Abubakar, Ahmed A.;Karim, Roselina;Karsani, Saiful A.;Sazili, Awis Q.
Journal of Animal Science and Technology
/
v.58
no.6
/
pp.23.1-23.17
/
2016
Background: The functionality of myofibrillar proteins is a major factor influencing the quality attributes of muscle foods. Nonetheless, the relationships between muscle type and oxidative changes in chevon during ageing are meagrely elucidated. Postmortem changes in antioxidant status and physicochemical properties of glycolytic gluteus medius (GM) and oxidative infraspinatus (IS) muscles in goats were compared. Methods: Twenty Boer bucks (9-10 months old, body weight of $36.9{\pm}0.725kg$) were slaughtered and the carcasses were subjected to chill storage ($4{\pm}0.5^{\circ}C$). Analyses were conducted on GM and IS muscles sampled on 0, 1, 4 and 7 d postmortem. Results: Chill storage did not affect the antioxidant enzyme activities in both muscles. The IS had greater (P < 0.05) superoxide dismutase and catalase activities than GM. Carotenoid and tocopherol contents did not differ between muscles but decreased (P < 0.05) over storage. The IS had higher (P < 0.05) glycogen and ultimate pH and lower (P < 0.05) shear force and cooking loss than GM. The carbonyl content, % metmyoglobin, drip loss and TBARS increased (P <0.05) while free thiol, metmyoglobin reducing activity (MRA), shear force and myoglobin decreased (P < 0.05) over storage. Muscle type had no effect (P > 0.05) on free thiol, MRA and TBARS. The GM had lower (P < 0.05) redness on d 0 and 1 than IS while the IS had greater carbonyl, % metmyoglobin and drip loss than GM on d 7. The reflective density of slow myosin heavy chain (MHC) was higher (P < 0.05) while the density of fast MHC and actin was lower (P < 0.05) in IS than GM. Regardless of muscle type, the density of MHC decreased (P < 0.05) while that of actin was stable over storage. Nonetheless, the degradation of fast and slow MHC was greater (P < 0.05) in IS than GM. Muscle type had no effect (P > 0.05) on consumer preference for flavour, juiciness and overall acceptability. However, IS had higher (P < 0.05) tenderness score than GM on d 1 and 4 postmortem. Intramuscular fat was higher (P< 0.05) in IS compared with GM. Fatty acid composition did not differ between the muscles. However, GM had lower (P < 0.05) n-6/n-3 ratio than IS. The n-3 and n-6 PUFA declined (P < 0.05) while the SFA increased (P < 0.05) over storage. Conclusion: The changes in myofibrillar proteins and physicochemical properties of goat meat during postmortem chill storage are muscle-dependent.
The ornamental industry encompasses cut flower, pot plant, turfgrass and nursery stock production and is an important part of the agricultural sector. As internationally traded commodities, cut flowers and plants are an integral part of the economy of a number of developing countries in South America, the Caribbean and Africa. Genetic modification (GM) is a tool with great potential to the ornamental horticulture industry. The rapid progress in our knowledge of plant molecular biology can accelerate the breeding ornamental plants using recombinant DNA technology techniques. Not only is there the possibility of creating new, novel products the driver of the industry but also the potential to develop varieties requiring less chemical and energy inputs. As an important non-food agricultural sector the use of genetically modified (GM) ornamental crops may also be ideal for the intensive farming necessary to generate pharmaceuticals and other useful products in GM plants. To date, there are only a few ornamental GM products in development and only one, a carnation genetically modified for flower colour, in the marketplace. International Flower Developments, a joint venture between Florigene Ltd. in Australia and Suntory Ltd. of Japan, developed the GM carnations. These flowers are currently on sale in USA, Japan and Australia. The research, development and commercialization of these products are summarized. The long term prospects for ornamental GM products, like food crops, will be determined by the regulatory environment, and the acceptance of GM products in the marketplace. These critical factors will be analysed in the context of the current legislative environment, and likely public and industry opinion towards ornamental genetically modified organisms (GMO's).
Proceedings of the Korean Society of Plant Biotechnology Conference
/
2003.04a
/
pp.39-48
/
2003
The ornamental industry encompasses cut flower, pot plant, turfgrass and nursery stock production and is an important part of the agricultural sector. As internationally traded commodities, cut flowers and plants are an integral part of the economy of a number of developing countries in South America, the Caribbean and Africa. Genetic modification (GM) is a tool with great potential to the ornamental horticulture industry. The rapid progress in our knowledge of plant molecular biology can accelerate the breeding ornamental plants using recombinant DNA technology techniques. Not only is there the possibility of creating new, novel products the driver of the industry but also the potential to develop varieties requiring less chemical and energy inputs. As an important non-food agricultural sector the use of genetically modified (GM) ornamental crops may also be ideal for the intensive farming necessary to generate pharmaceuticals and other useful products in GM plants. To date, there are only a few ornamental GM products in development and only one, a carnation genetically modified for flower colour, in the marketplace. International Flower Developments, a joint venture between Florigene Ltd. in Australia and Suntory Ltd.of Japan, developed the GM carnations. These flowers are currently on sale in USA, Japan and Australia. The research, development and commercialisation of these products are summarised. The long term prospects for ornamental GM products, like food crops, will be determined by the regulatory environment, and the acceptance of GM products in the marketplace. These critical factors will be analysed in the context of the current legislative environment, and likely public and industry opinion towards ornamental genetically modified organisms (GMO's).
Journal of the Korea Organic Resources Recycling Association
/
v.5
no.1
/
pp.15-23
/
1997
Commercial inocula and mature compost were added separately to food wastes in order to compare the inoculating effect on garbage decomposition. Among commercial inocula available in the market, GM (Green Microorganisms) and EM (Effective Microorganisms) were selected as test inocula. Garbage decompostion were evaluated in Volatile Solid (VS) reduction and FDA (Fluorescein DiAcetate) hydrolysis activity. VS reduction with mature compost experiment was higher than that with GM-added one. VS reduction rates were about 32% with mature compost and 27% with GM. When food wastes were treated with GM and EM based on the manufacturer's specifications, GM-added and EM-added food wastes showed only 8% and 9% of VS reduction respectively, which are much lower than those with the mature compost. FDA hydrolysis activity increased during the first 10 days of active composting periods for the composting experiments, while it decreased continuously for the experiments based on manufacturer's specifications.
Proceedings of the Korean Society of Crop Science Conference
/
2017.06a
/
pp.136-136
/
2017
In agriculture, the rice is the one of important things. Many farmers and scientists have long tried to increase the yield of rice. So many technologies have been developed these days. One type of technology has given rise to a host of concerns and questions, namely Genetically Modified Organisms (GMOs). The increasing cultivation of GM crops has raised a wide range of concerns with respect to food safety, environmental effects and socio-economic issues and now commercially planted on about 100 million hectares in some 22 developed and developing countries. The scientific evidence concerning the environmental and health impacts of GMOs is still emerging, but so far there is no conclusive information on the definitive negative impacts of GMOs on health or the environment. Nevertheless, public perceptions about GMOs in food and agriculture are divided with a tendency toward avoiding GM food and products in many developed and developing countries. Also Korea is one of that country and is not allow the GMOs now. So I studied whether these GMOs are actually dangerous for environment and whether there are differences in cultivar characteristics such as germination test with TTC tetrazolium, germination test in frozen soil and gene-flow test with glufosinate and strip-bar test. With these experiments, we evaluated the agricultural safety of GM rice and to identify and assess environmental risks.
Kim, Jae-Hwan;Song, Hee-Sung;Heo, Mun-Seok;Lee, Woo-Young;Lee, Soon-Ho;Park, Sun-Hee;Park, Hye-Kyung;Kim, Myung-Chul;Kim, Hae-Yeong
Food Science and Biotechnology
/
v.15
no.1
/
pp.148-151
/
2006
Multiplex PCR was performed to simultaneously detect eight different events of genetically modified (GM) maize. Specific primers were constructed from GA21, T25, TC1507, Mon810, Mon863, Event176, Bt11, and NK603 events of GM maize. Using this PCR method, specific GM maize was monitored in commercialized foods and feed.
Oh, Kwang-Hoon;Kim, A Rong;Bae, Jong-Hwan;Lee, Kyung Bok;Yoo, Yung Choon
Journal of the Korean Society of Food Science and Nutrition
/
v.45
no.2
/
pp.174-180
/
2016
In this study, the effects of fermented goat milk (F-GM) on immunological activity and physical strength were examined. Splenocytes obtained from mice administered with F-GM showed increased responsinveness to mitogens, concanavalin-A (ConA), and lipopolysaccharide (LPS). Treatment with F-GM also significantly augmented production of interleukin (IL)-2 and interferon (IFN)-${\gamma}$, but not IL-4 or IL-10 from ConA-stimulated splenocytes. The activity of F-GM administration to enhance production of IL-2 and IFN-${\gamma}$ was confirmed based on mRNA expression of these cytokines by reverse transcription polymerase chain reaction. After immunization with keyhole limpet hemocyanin (KLH, 20 mg/mouse), mice administered F-GM showed significantly higher antibody titers against KLH than those of phosphate-buffered saline-treated mice, and showed the highest titer 5 weeks after KLH immunization. Analysis for determining isotypes of antibodies revealed that administration of F-GM elicited KLH-specific antibody titers of IgG1, IgG2a, and IgM. In a delayed type hypersensitivity (DTH) test carried out 7 weeks after the primary immunization, F-GM-treated mice showed a higher DTH reaction than the control mice. Furthermore, the swimming test found that administration of F-GM significantly increased swimming time. These results suggest that administration of F-GM enhances not only immune responses against antigens but also physical strength.
This study was a survey of consumer awareness and attitudes about genetically modified foods and their labeling regulations. Questionnaires were distributed to 4,620 consumers who lived in different areas of Korea, and 4,076 people responded. The consumers were asked about knowledge, labeling information, and their sources of information about GM foods. Respondents from Seoul, Jeonnam, and Gyeongnam answered mostly "nearly don't know > moderate > never know > know a little." Respondents from Gyeonggi answered "moderate > nearly don't know > never know > know a little." According to occupation, housewives, company employees, consultants, and students answered mostly "nearly don't know > moderate > never know > know a little. "Consumers answered about the intent to buy GM foods differently according to area, occupation, and education. Seoul and Gyeonggi residents said that reinforcing factors to relieve the insecurity of GM foods were "evaluating safety > management of GM foods by the government > GM food regulation system." There were other answers according to area, occupation, and education. About GM-related education methods that they wished to have, residents of the Seoul area said "books/leaflets" most often, but residents of the Gyounggi area said "attending a lecture" most often. Housewives also said "attending a lecture," but teachers and students said "Internetbased education" most often. About the kinds of education that they could join, Seoul residents answered "consumer groups > school parents > public institutions," but Gyeonggi and Chungnam area residents answered "public institutions > consumer groups > school parents." Housewives and students answered "consumer groups" most often, but consultants and private business owners answered "public institutions" most often. We realized that different education methods were necessary for different areas, occupations, and education levels.
A two-year survey of consumers'awareness and perception of genetically-modified (GM) foods was conducted during May through September of 2000 and 2001 with a random sample of Korean consumers. More than 68% of the respondents were exposed to some information related to GM foods. The greatest benefit of the development of GM foods was thought to be the remedy for the food shortage in the future. More than 90% of Korean consumers wanted GM foods to be labeled. About 18% of the respondents would buy GM foods voluntarily, whereas over 49% would not until they found out more. Only 40% of Korean consumers were found to realize that food items originated ken plants contain genes. More consumers responded that they would not buy herbicide-tolerant GM soybean but buy vitamin-enriched GM soybean. It seemed to be that many Korean consumers do not make decisions of acceptance or rejection of GM foods not on the basis of biotechnology but on the basis of the word(5) used to describe the products, such as herbicide and vitamin. Only 4% of Korean consumers responded that GM foods were the greatest safety-threatening factor of Korean foods.
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