The application provides an amidated
pectin and a preparation method and application thereof, and belongs to the technical field of food additives.The preparation method of the amidated
pectin comprises the following steps: mixing citrus high methoxyl
pectin, an
ethanol solution and concentrated
ammonia water to react, and then obtaining the amidated pectin after washing and
drying.The amidated pectin has gel stability and environmental tolerance, and is especially suitable for being used as a stabilizer of stirred yogurt.The amidated pectin is applied to stirred yogurt, mixed with a
sweetening agent, and then added into preheated
fresh milk, and then the stirred yogurt is subjected to the steps of homogenization, sterilization,
inoculation fermentation, demulsification and post-
ripening, so that a product with uniform texture, high
water holding capacity and high freeze-thaw stability can be prepared.In addition, the amidated pectin and
sodium octenyl succinate starch are compounded, the freeze-thaw
water holding capacity of the gel, the
gel strength and the TPA index can be improved without adding
sucrose, and the product can be applied to
sucrose-free and frozen food.