Pub Date : 2024-06-20DOI: 10.1007/s00003-024-01513-9
Niklas Lindekamp, Stefan Weigel, Benjamin Sachse, Bernd Schäfer, Sascha Rohn, Nadja Triesch
Nineteen cannabinoids, including Δ9-THC (tetrahydrocannabinol) and CBD (cannabidiol), were quantified in 22 CBD oils, 2 CBG (cannabigerol) oils, and 2 CBN (cannabinol) oils, marketed as food supplements, aroma oils, or cosmetic preparations. Analyses were conducted using high-performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS). The declared concentrations of CBD (or CBG, CBN) in the oils ranged from 2.5 to 20%. Actual concentrations compared to declared concentrations ranged from 81 to 226%. CBD concentrations of up to 9 mg per drop were found. Δ9-THC was detected in 20 of 26 samples, with concentrations ranging from 5 to 1576 mg/kg (mean = 536 mg/kg). Considering the highest daily intake suggested by one manufacturer (20 drops) and a body weight of 70 kg, the measured Δ9-THC concentration in 50% (n = 13) of the products would exceed the acute reference dose (ARfD) of 1 µg/kg body weight (bw) derived for Δ9-THC by the European Food Safety Authority (EFSA). For 7 samples, only 2 drops of oil would be sufficient to exceed the ARfD of Δ9-THC.
{"title":"Comprehensive analysis of 19 cannabinoids in commercial CBD oils: concentrations, profiles, and safety implications","authors":"Niklas Lindekamp, Stefan Weigel, Benjamin Sachse, Bernd Schäfer, Sascha Rohn, Nadja Triesch","doi":"10.1007/s00003-024-01513-9","DOIUrl":"https://doi.org/10.1007/s00003-024-01513-9","url":null,"abstract":"<p>Nineteen cannabinoids, including Δ<sup>9</sup>-THC (tetrahydrocannabinol) and CBD (cannabidiol), were quantified in 22 CBD oils, 2 CBG (cannabigerol) oils, and 2 CBN (cannabinol) oils, marketed as food supplements, aroma oils, or cosmetic preparations. Analyses were conducted using high-performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS). The declared concentrations of CBD (or CBG, CBN) in the oils ranged from 2.5 to 20%. Actual concentrations compared to declared concentrations ranged from 81 to 226%. CBD concentrations of up to 9 mg per drop were found. Δ<sup>9</sup>-THC was detected in 20 of 26 samples, with concentrations ranging from 5 to 1576 mg/kg (mean = 536 mg/kg). Considering the highest daily intake suggested by one manufacturer (20 drops) and a body weight of 70 kg, the measured Δ<sup>9</sup>-THC concentration in 50% (n = 13) of the products would exceed the acute reference dose (ARfD) of 1 µg/kg body weight (bw) derived for Δ<sup>9</sup>-THC by the European Food Safety Authority (EFSA). For 7 samples, only 2 drops of oil would be sufficient to exceed the ARfD of Δ<sup>9</sup>-THC.</p>","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-09DOI: 10.1007/s00003-024-01510-y
Frauke Kirsch, Eva-Maria Kröner, R. Lange, J. Niemeyer, Miriam Laible, J. Seidel, Katrin Paulus, Annette Stephani, S. Tamosaite, K. Dünnebier
{"title":"Amtliche Untersuchungsergebnisse von Einweg-E-Zigaretten aus dem Jahr 2022 in Deutschland","authors":"Frauke Kirsch, Eva-Maria Kröner, R. Lange, J. Niemeyer, Miriam Laible, J. Seidel, Katrin Paulus, Annette Stephani, S. Tamosaite, K. Dünnebier","doi":"10.1007/s00003-024-01510-y","DOIUrl":"https://doi.org/10.1007/s00003-024-01510-y","url":null,"abstract":"","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141366740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-20DOI: 10.1007/s00003-024-01504-w
{"title":"Correction: 121. ALS-Sitzung","authors":"","doi":"10.1007/s00003-024-01504-w","DOIUrl":"https://doi.org/10.1007/s00003-024-01504-w","url":null,"abstract":"","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141119530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Regulations on nutrition and health claims are useful to protect consumers from deceptive practices of unscrupulous food manufacturers. Consumer protection is best achieved when relevant regulations are available and enforced. So far, no study has analyzed the robustness of regulations on nutrition and health claims in Malawi. In the present study, Malawi’s regulation was compared with Codex Alimentarius as well as European, U.S American, and the Republic of South Africa’s (RSA) regulations on nutrition and health claims. The study revealed that Malawi does not have regulations or guidelines on health claims and therefore, any health claim can be made. Likewise, Malawi’s regulation on nutrition claims was found to be the least demanding and less elaborate. Out of 11 nutrition claims related requirements, the Malawi regulation satisfied only 3. The lack of comprehensive nutrition and health claims regulations in Malawi may give an opportunity to dishonest manufacturers to mislead and deceive consumers. False claims can also derail government’s efforts towards addressing some nutrient deficiencies through food fortification programs. Currently, it is difficult to effectively regulate nutrition and health claims in Malawi. Therefore, the findings are a wake-up call for Malawi and other countries that may be in a similar situation to take the necessary remedial actions.
{"title":"Malawi’s ‘anything goes’ food market: weak regulations on nutrition and health claims","authors":"Rutendo Bell, Aggrey Pemba Gama, Limbikani Matumba","doi":"10.1007/s00003-024-01509-5","DOIUrl":"https://doi.org/10.1007/s00003-024-01509-5","url":null,"abstract":"<p>Regulations on nutrition and health claims are useful to protect consumers from deceptive practices of unscrupulous food manufacturers. Consumer protection is best achieved when relevant regulations are available and enforced. So far, no study has analyzed the robustness of regulations on nutrition and health claims in Malawi. In the present study, Malawi’s regulation was compared with Codex Alimentarius as well as European, U.S American, and the Republic of South Africa’s (RSA) regulations on nutrition and health claims. The study revealed that Malawi does not have regulations or guidelines on health claims and therefore, any health claim can be made. Likewise, Malawi’s regulation on nutrition claims was found to be the least demanding and less elaborate. Out of 11 nutrition claims related requirements, the Malawi regulation satisfied only 3. The lack of comprehensive nutrition and health claims regulations in Malawi may give an opportunity to dishonest manufacturers to mislead and deceive consumers. False claims can also derail government’s efforts towards addressing some nutrient deficiencies through food fortification programs. Currently, it is difficult to effectively regulate nutrition and health claims in Malawi. Therefore, the findings are a wake-up call for Malawi and other countries that may be in a similar situation to take the necessary remedial actions.</p>","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-25DOI: 10.1007/s00003-024-01506-8
C. J. Kuster, F. Kluxen, E. Felkers, Neil Morgan, Nicola J. Hewitt, Julien Durand-Réville
{"title":"Efficiency of working coveralls and chemical resistant gloves in reducing operator exposure to pesticides","authors":"C. J. Kuster, F. Kluxen, E. Felkers, Neil Morgan, Nicola J. Hewitt, Julien Durand-Réville","doi":"10.1007/s00003-024-01506-8","DOIUrl":"https://doi.org/10.1007/s00003-024-01506-8","url":null,"abstract":"","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140656168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-23DOI: 10.1007/s00003-024-01484-x
Marie von Meyer-Höfer, M. Hartmann, Peter Kenning, J. Luy, Marcus Mergenthaler, J. Roosen, A. Spiller, I. Christoph-Schulz
{"title":"SocialLab: Durch Forschung und Zusammenarbeit hin zu einer nachhaltigen landwirtschaftlichen Nutztierhaltung","authors":"Marie von Meyer-Höfer, M. Hartmann, Peter Kenning, J. Luy, Marcus Mergenthaler, J. Roosen, A. Spiller, I. Christoph-Schulz","doi":"10.1007/s00003-024-01484-x","DOIUrl":"https://doi.org/10.1007/s00003-024-01484-x","url":null,"abstract":"","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140668301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-22DOI: 10.1007/s00003-024-01485-w
I. Christoph-Schulz, Ivica Faletar, Monika Hartmann, Peter Kenning, Jörg Luy, Marcus Mergenthaler, Jutta Roosen, Achim Spiller, Marie von Meyer-Höfer
{"title":"Work package 1: Monitoring of the social acceptance of livestock farming","authors":"I. Christoph-Schulz, Ivica Faletar, Monika Hartmann, Peter Kenning, Jörg Luy, Marcus Mergenthaler, Jutta Roosen, Achim Spiller, Marie von Meyer-Höfer","doi":"10.1007/s00003-024-01485-w","DOIUrl":"https://doi.org/10.1007/s00003-024-01485-w","url":null,"abstract":"","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140674215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-17DOI: 10.1007/s00003-024-01483-y
Marie von Meyer-Höfer, Philipp von Gall, Bea Bardusch, Ivica Faletar, Marcus Mergenthaler, Jörg Luy, Inken Christoph-Schulz
This article presents a future workshop on agricultural livestock farming, which—as part of the SocialLab II project—developed and applied innovative methods including participating interest groups in the political transformation of livestock farming. This future workshop examines the desirable developments for agricultural livestock farming from the perspective of all interest groups. The interests in animal welfare, environmental and climate protection were taken into account, as well as the economic and practical requirements of the companies. Challenging for dialogs in the field of transforming animal husbandry are the sheer number of different demands from social groups. On the one hand, more and more interest groups are voicing new demands, for example in the area of climate protection. On the other hand, previously homogeneous interest groups, such as those from agriculture and from animal welfare, are becoming increasingly diversified in terms of goals, strategies and values. Animals are increasingly recognized as a group affected by politics with their own demands, although their political representation is still hardly regulated. This paper includes methodological features of the future workshop on agricultural livestock farming, the identified target images for agricultural livestock farming, effective approaches to stakeholder dialog and insights into the aspects of appreciation and communication in dialog between stakeholders. From a large number of positions and submissions, 3 future scenarios of livestock farming in Germany were identified: (i) higher standards, (ii) system change and reduction and (iii) alternatives to livestock farming. In future, policy measures and dialog formats in the field of livestock farming should disclose where they fit into this spectrum of objectives. Alliances and compromises between the visions of the future are possible in various combinations. Agreement on minimum legal requirements in animal welfare seems particularly urgent, as these form the starting point of the debate. In future, dialog formats should be more open about their contribution to the debate, whereby three functional areas of dialog formats can be distinguished.
作为社会实验室 II 项目的一部分,该项目开发并应用了创新方法,让利益集团参与到畜牧业的政治变革中来。该未来研讨会从所有利益集团的角度探讨了农业畜牧业的理想发展。动物福利、环境和气候保护方面的利益,以及企业的经济和实际需求都被考虑在内。畜牧业转型领域的对话所面临的挑战是来自社会群体的大量不同需求。一方面,越来越多的利益群体提出了新的要求,例如在气候保护方面。另一方面,以往同质化的利益群体,如农业利益群体和动物福利利益群体,在目标、战略和价值观方面正变得越来越多样化。动物作为受政治影响的一个群体,有着自己的诉求,这一点正日益得到认可,尽管它们的政治代表权还很难得到规范。本文包括未来农业畜牧业研讨会的方法论特点、已确定的农业畜牧业目标形象、利益相关者对话的有效方法以及对利益相关者对话中的欣赏和沟通方面的见解。从大量的立场和意见中,确定了德国畜牧业的三种未来情景:(i) 更高的标准,(ii) 系统变革和减少,(iii) 畜牧业的替代方案。今后,畜牧业领域的政策措施和对话形式应明确其与这些目标的契合点。未来愿景之间的联盟和妥协可以通过各种组合实现。就动物福利方面的最低法律要求达成一致似乎尤为迫切,因为这构成了辩论的起点。今后,对话形式应更加开放地参与辩论,对话形式可分为三个功能领域。
{"title":"Zukunft durch Beteiligung – landwirtschaftliche Tierhaltung im Dialog","authors":"Marie von Meyer-Höfer, Philipp von Gall, Bea Bardusch, Ivica Faletar, Marcus Mergenthaler, Jörg Luy, Inken Christoph-Schulz","doi":"10.1007/s00003-024-01483-y","DOIUrl":"https://doi.org/10.1007/s00003-024-01483-y","url":null,"abstract":"<p>This article presents a future workshop on agricultural livestock farming, which—as part of the SocialLab II project—developed and applied innovative methods including participating interest groups in the political transformation of livestock farming. This future workshop examines the desirable developments for agricultural livestock farming from the perspective of all interest groups. The interests in animal welfare, environmental and climate protection were taken into account, as well as the economic and practical requirements of the companies. Challenging for dialogs in the field of transforming animal husbandry are the sheer number of different demands from social groups. On the one hand, more and more interest groups are voicing new demands, for example in the area of climate protection. On the other hand, previously homogeneous interest groups, such as those from agriculture and from animal welfare, are becoming increasingly diversified in terms of goals, strategies and values. Animals are increasingly recognized as a group affected by politics with their own demands, although their political representation is still hardly regulated. This paper includes methodological features of the future workshop on agricultural livestock farming, the identified target images for agricultural livestock farming, effective approaches to stakeholder dialog and insights into the aspects of appreciation and communication in dialog between stakeholders. From a large number of positions and submissions, 3 future scenarios of livestock farming in Germany were identified: (i) higher standards, (ii) system change and reduction and (iii) alternatives to livestock farming. In future, policy measures and dialog formats in the field of livestock farming should disclose where they fit into this spectrum of objectives. Alliances and compromises between the visions of the future are possible in various combinations. Agreement on minimum legal requirements in animal welfare seems particularly urgent, as these form the starting point of the debate. In future, dialog formats should be more open about their contribution to the debate, whereby three functional areas of dialog formats can be distinguished.</p>","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-16DOI: 10.1007/s00003-024-01487-8
Nadine R. Gier-Reinartz, Regina Harms, Peter Kenning, Christina Neubig, Malte Oehlmann, Jutta Roosen
Informationen am Point of Sale zur landwirtschaftlichen Nutztierhaltung können das Kauf-, Konsum- und Kommunikationsverhalten von Verbraucherinnen und Verbrauchern unterschiedlich stark beeinflussen. Um Verbraucherinformation effektiv und effizient gestalten zu können, braucht es Kenntnis über Kommunikationsmaßnahmen, die das Verhalten von Verbraucherinnen und Verbrauchern beeinflussen können und für diese besonders relevant sind. Vor diesem Hintergrund fokussiert dieser Beitrag (a) welche Kommunikationsinhalte am Point of Sale (nicht) genutzt und als (un)wichtig erachtet werden, (b) welche Veränderungen hinsichtlich des Informationsbedarfs bestehen, (c) welche Kommunikationsträger als potenzielle Informationsquelle am Point of Sale genutzt werden, und (d) welche Labels, die im Bereich der landwirtschaftlichen Nutztierhaltung zur Produktkennzeichnung verwendet werden, hinreichend bekannt und vertrauensvoll sind. Die Ergebnisse weisen darauf hin, dass insbesondere Kommunikationsinhalte zum Preis und zur Haltbarkeit, aber auch zur Haltung der Nutztiere sowie die Kommunikationsträger „Verpackung“ und „Label“ durch Verbraucherinnen und Verbraucher am Point of Sale genutzt werden. Dabei deuten sich bei aktuellen Produktkennzeichnungen und verwendeten Labels für landwirtschaftliche Nutztierhaltung teilweise große Bekanntheitsunterschiede an, wobei wenn Personen ein Label kennen keines der untersuchten Labels im Vergleich einen Vertrauensvorsprung zu haben scheint. Ein konstant wachsender Bedarf an weiteren Informationen zur Tierhaltung (z. B. zu Tiergesundheitsindikatoren) ist jedoch erkennbar. Dieser scheint jedoch durch aktuell bekannte Kommunikationsmaßnahmen am Point of Sale nicht gedeckt zu sein. Durch verstärkte Aufklärung mittels bereits genutzter Kommunikationsträger zur Tierhaltung, wie z. B. das Verpackungslabel „Haltungsform“, könnten bestehende Lücken geschlossen werden.
{"title":"Wie informieren sich Verbraucherinnen und Verbraucher am Point of Sale? Eine Untersuchung zur Wahrnehmung von Kommunikationsmaßnahmen und Labels","authors":"Nadine R. Gier-Reinartz, Regina Harms, Peter Kenning, Christina Neubig, Malte Oehlmann, Jutta Roosen","doi":"10.1007/s00003-024-01487-8","DOIUrl":"https://doi.org/10.1007/s00003-024-01487-8","url":null,"abstract":"<p>Informationen am Point of Sale zur landwirtschaftlichen Nutztierhaltung können das Kauf-, Konsum- und Kommunikationsverhalten von Verbraucherinnen und Verbrauchern unterschiedlich stark beeinflussen. Um Verbraucherinformation effektiv und effizient gestalten zu können, braucht es Kenntnis über Kommunikationsmaßnahmen, die das Verhalten von Verbraucherinnen und Verbrauchern beeinflussen können und für diese besonders relevant sind. Vor diesem Hintergrund fokussiert dieser Beitrag (a) welche Kommunikationsinhalte am Point of Sale (nicht) genutzt und als (un)wichtig erachtet werden, (b) welche Veränderungen hinsichtlich des Informationsbedarfs bestehen, (c) welche Kommunikationsträger als potenzielle Informationsquelle am Point of Sale genutzt werden, und (d) welche Labels, die im Bereich der landwirtschaftlichen Nutztierhaltung zur Produktkennzeichnung verwendet werden, hinreichend bekannt und vertrauensvoll sind. Die Ergebnisse weisen darauf hin, dass insbesondere Kommunikationsinhalte zum Preis und zur Haltbarkeit, aber auch zur Haltung der Nutztiere sowie die Kommunikationsträger „Verpackung“ und „Label“ durch Verbraucherinnen und Verbraucher am Point of Sale genutzt werden. Dabei deuten sich bei aktuellen Produktkennzeichnungen und verwendeten Labels für landwirtschaftliche Nutztierhaltung teilweise große Bekanntheitsunterschiede an, wobei wenn Personen ein Label kennen keines der untersuchten Labels im Vergleich einen Vertrauensvorsprung zu haben scheint. Ein konstant wachsender Bedarf an weiteren Informationen zur Tierhaltung (z. B. zu Tiergesundheitsindikatoren) ist jedoch erkennbar. Dieser scheint jedoch durch aktuell bekannte Kommunikationsmaßnahmen am Point of Sale nicht gedeckt zu sein. Durch verstärkte Aufklärung mittels bereits genutzter Kommunikationsträger zur Tierhaltung, wie z. B. das Verpackungslabel „Haltungsform“, könnten bestehende Lücken geschlossen werden.</p>","PeriodicalId":622,"journal":{"name":"Journal of Consumer Protection and Food Safety","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140565408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}