LWT-FOOD SCIENCE AND TECHNOLOGY
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2024
·
IF 6
Ying Wang,Siqi Li,Jing Sun,Yufang Li,Yan Hu,Chuanpu Shen,Feilong Liu,Shiwen Guo,Feiran Chen,Qiangjian Liu,Jingjing Ma,Fucai Ren,Furong Yang,Qunlin Zhang,Jingyuan Song,Tianyi Xin,Xiangdong Pu
Adulteration, pesticide residues, and fungal contamination are the three key factors affecting herbal medicine safety. Herbal tea is a healthy beverage containing bioactive molecules and is one of the derivatives of medicine food homology herbal medicine. However, these three factors are often ignored in the herbal tea industry. In this study, 171 commercially available Panax herbal tea products were tested. The findings revealed that the target Panax ingredient in the herbal tea products was adulterated by Platycodon grandiflorum or the mixed-using of Panax genus species, with an adulteration rate of 25.1%. The pentachloronitrobenzene (PCNB) pesticide residue rate was 78.4% in the 171 Panax herbal tea products. Two samples demonstrated obvious fungal contamination. Among the 171 Panax herbal teas, 98 samples were qualified with the correct species, qualified pesticide residues, and no fungal contamination (eyeballing). The present investigation not only sheds light on the three key factors exerting a significant impact on herbal tea safety but also provides a reference for the comprehensive evaluation of herbal tea, thereby facilitating the development of this industry.
研究领域:
中药学
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食品安全
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植物化学
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2021
·
IF 7.514
Haihuan Xie,Yingying Li,Jin Wang,Yi Lei,Anastasios Koidis,Xiangmei Li,Xing Shen,Zhenlin Xu,Hongtao Lei
Sulfonylureas (SUs) are a series of anti-diabetic drugs widely used for type 2 diabetes mellitus for clinic treat. However, it is often illegally adulterated in multi-herbal tea to improve the claimed anti-diabetic activity in recent years. In this study, a novel hapten was rationally designed, and a broad-specific monoclonal antibody (anti-SUs mAb) recognizing nine SUs was developed. This mAb was used to develop a colloidal gold lateral flow immunochromatographic assay (CG-LFIA). The anti-SUs mAb demonstrated half inhibitory concentration (IC 50 ) ranged from 0.15 ng/mL to 3.25 ng/ mL for nine SUs by ELISA. The cut-off value of developed CG-LFIA for nine SUs was from 3 to 100 ng/ mL for the spiked samples. LC-MS/MS confirmed the reliability of the new CG-LFIA. The results indicated that the proposed CG-LFIA could be an ideal method in on-site screening surveillance assay for SUs illegally adulterated in multi-herbal tea products.
研究领域:
药理学
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食品安全检测
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产品关联
DOI
PubMed
高影响因子
LASER PHYSICS LETTERS
·
2018
·Vol. 15
·期 5
·055701
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IF 2.235
Xi Liu,Meizhen Huang,Jie Chen,Lili Kong,Keihui Wang
A simple method, based on a roll-to-roll ultraviolet micro-pyramid imprinting technique and a nanoparticle self-assembling process in aqueous solution, to fabricate a large-area, flexible surface-enhanced Raman scattering (SERS) polyethylene glycol terephthalate substrate is proposed. The SERS substrate is demonstrated to be of high sensitivity. The detection concentration of Rhodamine 6G (R6G) measured by a portable Raman spectrometer is down to 10−9 mol l−1. The relative standard deviation values of different spots and different substrates are less than 13%. In addition, the feasibility for rapid detection of dye in herbal tea based on this SERS substrate and a portable Raman spectrometer is investigated. Three industrial dyes are employed to simulate the dyeing process. It is presented that R6G of 4.8\times {{10}^{-7}} g ml−1, malachite green of 10−6 g ml−1 and Auramine O of 10−6 g ml−1 in herbal tea could be detected rapidly. The experimental results imply that this method could be potentially applied in the field of dyed herbal tea detection.
研究领域:
分析化学
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材料科学
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食品安全
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产品关联
DOI
高影响因子
RSC Advances
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2012
·Vol. 2
·期 14
·5983-5989
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IF 0
Hong-Wen Gao,Dong-Dong Ma,Gang Xu
Many kinds of medicinal plants are used in the treatment of disease, and a proportion of these plants grow tenaciously in soils contaminated with heavy metals. An example of one such medicinal plant is the herb Thlaspi rotundifolium L., which accumulates selenium (Se), and has anti-oxidation, anti-aging, anti-cancer and immunity-adjusting properties, but also simultaneously hyperaccumulates harmful metals such as Cd and Zn from the soil. An interesting model named ‘digging metals@plant then backfilling’ has been suggested, where the metals are removed from the plant by acid treatment, then the nano-pores imprinted with the heavy metals are backfilled from the drinking water. Experimental studies of this idea indicate that it can remove unwanted substances from the herb itself and also from the drinking water, ensuring the safety of the herb tea. Additionally, the Se normally embedded in the herb was not noticeably lost. Thus, this model provides a sustainable solution for the disposal of heavy metals using metal-accumulating plants.
研究领域:
植物生理学
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环境毒理学
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食品科学
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天然药物化学
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环境修复
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生物医学工程
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农业资源利用
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DOI
Foods
·
2024
·Vol. 13
·期 11
·1705
·
IF 4.7
Jin Zhang,Jinling Lv,Guodong Zhuang,Junjia Zhang,Feng Hu,Yongsheng Chen
Recent research has demonstrated the positive impact of herbal tea consumption on postprandial blood glucose regulation. This study conducts a comparative analysis of aqueous and ethanol extractions on four herbal teas (Mallotus, Cyclocarya, Rubus, and Vine) to assess their phytochemical profiles and functional attributes. Phytochemical contents, antioxidant activities, α-glucosidase inhibitory activities, and chemical compositions are investigated via colorimetric analyses and UPLC-Q-Orbitrap HRMS/MS, respectively. Results indicate that Vine, among the teas studied, exhibits the most pronounced glucose-regulating effects under both extraction methods. While ethanol extractions yield higher phytochemical content overall, the compositions vary. Conversely, aqueous extracts demonstrate unexpectedly potent antioxidant activities and comparable α-glucosidase inhibitory activities to ethanol extracts. Phytochemical contents correlate positively with antioxidant activities and α-glucosidase inhibitory activities. However, antioxidant activities exhibit a weak positive correlation with α-glucosidase inhibitory activities. These findings provide evidence that aqueous extracts from herbal teas contain valuable phytochemical compositions beneficial for antioxidants and individuals with hyperglycemia, suggesting their potential as functional ingredients to enhance the nutritional value of herbal food products.
研究领域:
药用植物学
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营养保健品
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食品科学
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生物化学
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植物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）