Effects of crisp-keeping agents on physicochemical quality and texture of papaya pickles
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摘要: 以番木瓜为原料,研究了不同保脆剂及浓度对番木瓜腌制前后亚硝酸盐、氨基酸态氮含量和质构特性的影响。结果表明,采用氯化钙处理番木瓜酱菜其亚硝酸盐含量显著低于对照组、乳酸钙、碳酸钙和复合保脆剂(海藻酸钠∶氯化钙=1∶1)处理组(p<0.05),氨基酸态氮含量显著高于对照组(p<0.05),脆性显著高于对照组、碳酸钙(p<0.05),咀嚼性显著高于对照组、乳酸钙、碳酸钙和复合保脆剂处理组(p<0.05);采用0.15%氯化钙保脆剂处理番木瓜酱菜其亚硝酸盐含量显著低于对照组和0.05%、0.1%氯化钙处理组(p<0.05),氨基酸态氮含量显著高于对照组(p<0.05),脆性、弹性、咀嚼性显著高于对照组及0.05%、0.1%氯化钙处理组(p<0.05);通过化学成分含量与质构指标的相关性分析,脆性与亚硝酸盐含量呈负相关性(R=-0.955*),与氨基酸态氮含量成正相关性(R=0.892*),亚硝酸盐与氨基酸态氮含量与弹性、内聚性、咀嚼性等质构指标的相关性不高。在番木瓜酱菜中添加0.15%氯化钙,可以改善产品的品质及质地。Abstract: The effects of different crisp-keeping agents and concentrations on nitrite contents, amino nitrogen contents and texture parameters were studied.The results showed as follows: Nitrite contents in CaCl2 treated papaya pickles was significantly lower than those in CK, calcium lactate, CaCO3 and crisp-keeping agent combination [ ( C6H7NaO6) x∶ CaCl2= 1 ∶ 1]treated groups ( p < 0.05) . Amino nitrogen contents in CaCl2 treated group were significantly higher than those in CK ( p < 0.05) ;Brittleness in CaCl2 treated group was significantly higher than those in CK and CaCO3groups ( p < 0.05) . Chewiness in CaCl2 treated group was significantly higher than those in CK, calcium lactate, CaCO3 and crisp-keeping agent combination groups ( p < 0.05) . Nitrite contents in 0.15% CaCl2 treated group were significantly lower than those in CK, 0.05% and 0.1% CaCl2 treated groups ( p < 0.05) .Amino nitrogen contents in 0.15% CaCl2 treated group were significantly higher than those in CK ( p <0.05) . Brittleness, springiness and chewiness of 0.15% CaCl2 treated group were significantly higher than those in CK, 0.05%and 0.1% CaCl2 treated groups ( p < 0.05) . Through the correlation analysis between physicochemical indicators and texture measurements, it was indicated that brittleness exhibited negative correlation with nitrite ( R =-0.955 *) and positive correlation with amino nitrogen content ( R = 0.892 *) . Nitrite and amino nitrogen contents exhibited low correlation with springiness, cohesiveness and chewiness.In conclusion, 0.15% CaCl2 added in papaya pickles could improve product quality and texture.
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Keywords:
- papaya /
- crisp-keeping agent /
- texture /
- physicochemical quality
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