冻干水果月饼加工工艺技术

为解决传统工艺水果月饼水果含量低、添加剂多和营养成分被破坏的缺点，首次将真空冷冻干燥技术应用于水果月饼中，开发出冻干水果月饼，并在单因素实验的基础上，选取冻干果肉、黄油、牛奶添加量及常温冰皮配方作为影响因素进行4因素3水平的正交试验，以确定冻干水果月饼的最佳工艺参数，同时分析了冻干水果月饼的营养特性。结果表明:当冻干果肉1 500 g、黄油28 g、牛奶8 g、常温冰皮配方3 310 g（冰皮粉1 550 g、麦芽糖醇600 g、斑斓糖醇650 g、白奶油500 g、增稠剂10 g）时，产品的感官评分最高。影响产品感官评分的主次顺序为冻干果肉＞常温冰皮配方＞牛奶＞黄油。验证结果表明，该工艺下产品的感官评分为96.2，其中果糖5.8 g/100 g、β-胡萝卜素1.34 mg/100 g、维生素A 30.5μg/100 g、维生素C 4.62 mg/100 g、维生素E 2.042 mg/100 g，产品在加工过程中营养保留率高，并且还具有脂肪含量低（6.3 g/100 g）的优点，同时，产品的酸价和过氧化值均低于月饼国家标准的限量。冻干水果月饼是一款水果含量高、营养和健康的月饼。 

Processing Technology of Freeze-dried Fruit Moon Cake

In order to solve shortcomings of traditional fruit moon cakes with low fruit content，high use of additives and destruction of nutrients，vacuum freeze-drying technology to make fruit moon cakes was firstly applied，and then freeze-dried fruit moon cakes were developed.Based on single factor experiments，freeze-dried pulp addition，butter addition，milk addition and ice skin formula were chosen as four influencing factors.Four-factor and three-level orthogonal experiments were carried out to determine optimal process parameters of freeze-dried fruit mooncakes，and the nutrient characteristics of freeze-dried fruit mooncakes were analyzed.Results showed that when freeze-dried pulp 1 500 g，butter 28 g，milk 8 g，ice skin 3 310 g（ice skin powder 1 550 g，maltitol 600 g，canthaxol 650 g，white cream 500 g，thickener 10 g），the product could reach the highest sensory score.The primary and secondary order affecting sensory score of the product was freeze-dried pulp>normal temperature ice skin formula>milk>butter.The verification results showed that the sensory score of the product under the process was 96.2，of which fructose 5.8 g/100g，β-carotene 1.34 mg/100g，vitamin A 30.5μg/100g，vitamin C 4.62 mg/100g，vitamin E 2.042 mg/100g.The product has high nutrient retention rate during processing and also has the advantage of low fat content（6.3 g/100g）.At the same time，the acid value and peroxide value of the product are much lower than the national standard of moon cake.Freeze-dried fruit mooncake is a high fruit content，nutritious and healthy mooncake.