Effect of Chitosan and Chitosan-based Coatings on the Storage Quality of Lotus Rhizones

Abstract:

In this study,three coating solutions were prepared and its effect on the refrigerated lotus rhizones quality was investigated.The formulations were based on chitosan alone,and in combination with nano-SiOx,and nano-SiOx and SnCl2,and with the uncoated sample as a control.All products were stored at 0-10℃ and the quality parameters such as weight loss,respiration rate,L-value,PPO activity,soluble sugar content,reducing sugar content,firmness and preservation index were evaluated.The results showed that the coating of chitosan in combination with nano-SiOx was the most effective in keeping the quality of lotus rhizones by retarding weight loss,respiration,sugar consumption,color darkening and hardness drop,while adding SnCl2 to which didn’t have a positive influence on the quality of lotus rhizones during storage.