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ID:32208024
大小:2.79 MB
页数:62页
时间:2019-02-01
《热风干燥型方便米饭加工工艺及品质改良》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、热风干燥型方便米饭加工工艺及品质改良摘要本文选用12个品种的大米制作热风干燥型方便米饭,分析了原料大米的成分、米饭蒸煮品质指标,以及物性指标(TextureProfileAnalysis,TPA)与方便米饭感官指标之间的关系。结果表明,物性指标中的硬度与总分、滋味和形态呈显著的负相关性(P<0.05);黏着性与总分和口感呈显著的负相关性,与滋味呈极显著负相关;蛋白质含量与方便米饭的滋味和总分呈显著性负相关(P<0.05),与口感呈极显著负相关;直链淀粉含量与方便米饭的滋味和口感呈极显著负相关(P<0.01),与总分呈显著负相关(P<0.05)。利用TPA实验可以辅助感官评价实
2、验对感官品质进行评价,大米的直链淀粉含量和蛋白质含量对热干方便米饭滋味、口感和总分有显著的影响,选用直链淀粉含量<18%、蛋白质含量<7%的粳米制作的热干方便米饭其食用品质较好。通过浸泡条件、蒸煮条件和干燥条件对热风干燥型方便米饭特性影响的分析,得出浸泡时间、温度和压力对米粒和a化米的吸水速率和含水量有重要的影响;蒸煮温度对方便米饭的硬度、黏度和微观结构有重要影响,100℃蒸煮温度适合制备方便米饭;干燥温度和时间对方便米饭的含水量和复水率影响较大,100℃干燥100min的条件适合制备方便米饭。经单因素试验和正交优化试验,得出预浸时间和二次浸泡时间对方便米饭的复水率有极显著的
3、影响(P4、燥型方便米饭的品质改良剂;根据正交优化试验,得出复合食品添加剂的最佳配比:在混合水溶液中,B.环状糊精溶液浓度为O.2%,蔗糖脂肪酸酯溶液浓度为0.2%,柠檬酸溶液浓度为0.4%时,由其浸泡制得的方便米饭综合评价较好。关键词:方便米饭;热风干燥;感官评价;物性分析:食用品质ProductionProcessesandQualityImprovementforHeated-·airDriedInstantRiceAbstractTwelvericecultivarswereselectedforproducingheated—airdriedinstantrice.Physic5、al-chemicalindexes,cookingtestofrice,textureprofileandsensoryindexesweremeasuredandtherelationshipsamongthemwereanalyzed.Theresultshowedthathardnessoftextureprofileparametersexhibitednegativecorrelation嘶thtotalscore,flavourandformofinstantrice.Adhesivenesswasnegativelycorrelatedwitlltotalsc6、oreandtexture,itshowedsignificantnegativecorrelationwithflavour.Proteincontentofricehadnegativecorrelationwithflavorandtotalscore,andshowedasignificantnegativecorrelationwitlltexture.Amylosecontentshowedsignificantnegativecorrelationwithflavourandtexture.andwasnegativelycorrelated、Ⅳitlltota7、lscore.Itisrevealedthatthetextureprofileanalysis(TPA)Canbeadoptedtoevaluatethesensoryqualityoftheproduct.Proteincontentandamylosecontentofricehavemarkedeffectsonflavour,textureandtotalscoreofheated-air越edinstantrice.Thejaponicaricewitllamylosecontent<18%
4、燥型方便米饭的品质改良剂;根据正交优化试验,得出复合食品添加剂的最佳配比:在混合水溶液中,B.环状糊精溶液浓度为O.2%,蔗糖脂肪酸酯溶液浓度为0.2%,柠檬酸溶液浓度为0.4%时,由其浸泡制得的方便米饭综合评价较好。关键词:方便米饭;热风干燥;感官评价;物性分析:食用品质ProductionProcessesandQualityImprovementforHeated-·airDriedInstantRiceAbstractTwelvericecultivarswereselectedforproducingheated—airdriedinstantrice.Physic
5、al-chemicalindexes,cookingtestofrice,textureprofileandsensoryindexesweremeasuredandtherelationshipsamongthemwereanalyzed.Theresultshowedthathardnessoftextureprofileparametersexhibitednegativecorrelation嘶thtotalscore,flavourandformofinstantrice.Adhesivenesswasnegativelycorrelatedwitlltotalsc
6、oreandtexture,itshowedsignificantnegativecorrelationwithflavour.Proteincontentofricehadnegativecorrelationwithflavorandtotalscore,andshowedasignificantnegativecorrelationwitlltexture.Amylosecontentshowedsignificantnegativecorrelationwithflavourandtexture.andwasnegativelycorrelated、Ⅳitlltota
7、lscore.Itisrevealedthatthetextureprofileanalysis(TPA)Canbeadoptedtoevaluatethesensoryqualityoftheproduct.Proteincontentandamylosecontentofricehavemarkedeffectsonflavour,textureandtotalscoreofheated-air越edinstantrice.Thejaponicaricewitllamylosecontent<18%
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