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Effect of ascorbic acid, oxygen and storage duration on patulin in cloudy apple juice produced on a semi-industrial scale

In: World Mycotoxin Journal
Authors:
C. El Hajj Assaf Flanders Research Institute for Agricultural, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium.
Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, 31027 Toulouse, France.

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N. De Clercq Flanders Research Institute for Agricultural, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium.

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E. De Paepe Flanders Research Institute for Agricultural, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium.

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G. Vlaemynck Flanders Research Institute for Agricultural, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium.

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E. Van Coillie Flanders Research Institute for Agricultural, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium.

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E. Van Pamel Flanders Research Institute for Agricultural, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium.

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Patulin (PAT), a mycotoxin mainly produced byPenicillium expansum, is of high concern with regard to human food safety. This study examined the stability of PAT in artificially contaminated cloudy apple juice (CAJ) produced on a semi-industrial scale using an innovative technology allowing degassing and pressing under low-oxygen conditions (VaculIQ 1000). The effects of adding ascorbic acid (AA), degassing during production and storing in the dark at 20 °C on the PAT concentration were studied, as well as possible degradation and reaction products formed. The highest PAT degradation (50%) was observed for flash-pasteurised juice with AA added, produced under low-oxygen conditions and degassed and stored for 14 days at 20 °C in the dark in aluminium laminate aseptic bags. Juices produced showed no significant differences in the quality parameters measured and did not show significant formation of reaction products. Further research needs to be focused on the fate of PAT in CAJ produced on an industrial level with and without addition of AA.

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