ANSWER
According to National Food Safety Standard – Standard for Uses of Food Additives GB2760-2014, nisin and natamycin are not permitted to be used in ice cream applications.
For more information, please refer to the attachment below.
Kindly note that the attachment has not been translated to English.
GB-2760_2014-China-Food-Additives-Standard
Reference
National Health and Family Planning Commission of the People’s Republic of China. (2014). National Food Safety Standard – Standard for Uses of Food Additives (GB2760-2014).