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Kinetics of patulin degradation in model solution, apple cider and apple juice by ultraviolet radiation.
Food Sci Technol Int. 2013 Aug; 19(4):291-303.FS

Abstract

Patulin is a mycotoxin produced by a wide range of molds involved in fruit spoilage, most commonly by Penicillium expansum and is a health concern for both consumers and manufacturers. The current study evaluated feasibility of monochromatic ultraviolet (UV) radiation at 253.7 nm as a possible commercial application for the reduction of patulin in fresh apple cider and juice. The R-52G MINERALIGHT® UV bench top lamp was used for patulin destruction. It was shown that 56.5%, 87.5%, 94.8% and 98.6% reduction of patulin can be achieved, respectively, in the model solution, apple cider, apple juice without ascorbic acid addition and apple juice with ascorbic acid addition in 2-mm thickness sample initially spiked by 1 mg·L(-1) of patulin after UV exposure for 40 min at UV irradiance of 3.00 mW·cm(-2). A mathematic model to compare the degradation rate and effective UV dose was developed. The effective UV doses that were directly absorbed by patulin for photochemical reaction were 430, 674, 724 and 763 mJ·cm(-3), respectively. The fluence-based decimal reduction time was estimated to 309.3, 31.3, 28.9 and 5.1 mW·cm(-2)·min, respectively, in four media mentioned above. The degradation of patulin followed the first-order reaction model. The time-based and fluence-based reaction rate constants were determined to predict patulin degradation. The time-based reaction rate constant of samples treated in dynamic regime with constant stirring (model solution: 2.95E-4 s(-1), juice: 4.31E-4 s(-1)) were significantly higher than samples treated in static regime (model solution: 2.79E-4 s(-1), juice: 3.49E-4 s(-1), p < 0.05) when applied UV irradiance and sample thickness were consistent. The reaction rate constant of patulin degradation in apple juice was significantly higher than model solution (p < 0.05). Although further investigations are still needed, the results of this study demonstrated that UV radiation may be an effective method for treating patulin-containing apple cider and juice.

Authors+Show Affiliations

1Guelph Food Research Center, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23729413

Citation

Zhu, Yan, et al. "Kinetics of Patulin Degradation in Model Solution, Apple Cider and Apple Juice By Ultraviolet Radiation." Food Science and Technology International = Ciencia Y Tecnologia De Los Alimentos Internacional, vol. 19, no. 4, 2013, pp. 291-303.
Zhu Y, Koutchma T, Warriner K, et al. Kinetics of patulin degradation in model solution, apple cider and apple juice by ultraviolet radiation. Food Sci Technol Int. 2013;19(4):291-303.
Zhu, Y., Koutchma, T., Warriner, K., Shao, S., & Zhou, T. (2013). Kinetics of patulin degradation in model solution, apple cider and apple juice by ultraviolet radiation. Food Science and Technology International = Ciencia Y Tecnologia De Los Alimentos Internacional, 19(4), 291-303. https://doi.org/10.1177/1082013212452414
Zhu Y, et al. Kinetics of Patulin Degradation in Model Solution, Apple Cider and Apple Juice By Ultraviolet Radiation. Food Sci Technol Int. 2013;19(4):291-303. PubMed PMID: 23729413.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Kinetics of patulin degradation in model solution, apple cider and apple juice by ultraviolet radiation. AU - Zhu,Yan, AU - Koutchma,Tatiana, AU - Warriner,Keith, AU - Shao,Suqin, AU - Zhou,Ting, Y1 - 2013/05/31/ PY - 2013/6/5/entrez PY - 2013/6/5/pubmed PY - 2013/9/17/medline KW - Patulin KW - UV exposure KW - absorption coefficient KW - apple cider KW - apple juice KW - ascorbic acid KW - first-order degradation model KW - model solution SP - 291 EP - 303 JF - Food science and technology international = Ciencia y tecnologia de los alimentos internacional JO - Food Sci Technol Int VL - 19 IS - 4 N2 - Patulin is a mycotoxin produced by a wide range of molds involved in fruit spoilage, most commonly by Penicillium expansum and is a health concern for both consumers and manufacturers. The current study evaluated feasibility of monochromatic ultraviolet (UV) radiation at 253.7 nm as a possible commercial application for the reduction of patulin in fresh apple cider and juice. The R-52G MINERALIGHT® UV bench top lamp was used for patulin destruction. It was shown that 56.5%, 87.5%, 94.8% and 98.6% reduction of patulin can be achieved, respectively, in the model solution, apple cider, apple juice without ascorbic acid addition and apple juice with ascorbic acid addition in 2-mm thickness sample initially spiked by 1 mg·L(-1) of patulin after UV exposure for 40 min at UV irradiance of 3.00 mW·cm(-2). A mathematic model to compare the degradation rate and effective UV dose was developed. The effective UV doses that were directly absorbed by patulin for photochemical reaction were 430, 674, 724 and 763 mJ·cm(-3), respectively. The fluence-based decimal reduction time was estimated to 309.3, 31.3, 28.9 and 5.1 mW·cm(-2)·min, respectively, in four media mentioned above. The degradation of patulin followed the first-order reaction model. The time-based and fluence-based reaction rate constants were determined to predict patulin degradation. The time-based reaction rate constant of samples treated in dynamic regime with constant stirring (model solution: 2.95E-4 s(-1), juice: 4.31E-4 s(-1)) were significantly higher than samples treated in static regime (model solution: 2.79E-4 s(-1), juice: 3.49E-4 s(-1), p < 0.05) when applied UV irradiance and sample thickness were consistent. The reaction rate constant of patulin degradation in apple juice was significantly higher than model solution (p < 0.05). Although further investigations are still needed, the results of this study demonstrated that UV radiation may be an effective method for treating patulin-containing apple cider and juice. SN - 1082-0132 UR - https://www.unboundmedicine.com/medline/citation/23729413/Kinetics_of_patulin_degradation_in_model_solution_apple_cider_and_apple_juice_by_ultraviolet_radiation_ L2 - http://journals.sagepub.com/doi/full/10.1177/1082013212452414?url_ver=Z39.88-2003&amp;rfr_id=ori:rid:crossref.org&amp;rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -