The benefits of modified atmosphere of ethanol-treated grapes.
Lichter A., Autchi Y., Kaplunov T., Shacham Z., Aharoni N., Lurie S.
5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004. page 19
2004
บทคัดย่อ
The benefits of modified atmosphere of ethanol-treated grapes.
Grape storage requires stringent control of decay caused by Botrytis cinerea.The commercial practice is dependent on SO2 as a fumigant which is applied by various means with well known advantages and downsides.Many alternative technologies were developed over the years, most of them with limited efficacy or applicability.Modified atmosphere (MA) of table grapes suffers from a narrow threshold between efficacy and damage due to high level of CO2 in the film.We have demonstrated in the past that dipping table grapes in ethanol after harvest has a very pronounced effect on prevention of decay.However, ethanol is not expected to prevent latent infections from developing decay nests during prolonged storage.We now demonstrate that if we first treat grapes of cv. ‘Superior’ with ethanol and then subject them to MA using XtendÒ films, we can achieve a synergistic effect.The advantage of the XtendÒ film is mainly in its water conductance, which prevents accumulation can guarantee wide margins which are a prerequisite for commercial applicability.We also demonstrate that if undesired aftertaste does build up, one day exposure to ambient air is sufficient to avoid it.