粮食科技与经济
糧食科技與經濟
양식과기여경제
Grain Science and Technology and Economy
2015年
5期
53-56
,共4页
张龙%吕建华%李兴军%姜平
張龍%呂建華%李興軍%薑平
장룡%려건화%리흥군%강평
稻谷%水分含量%裂纹率%破碎率
稻穀%水分含量%裂紋率%破碎率
도곡%수분함량%렬문솔%파쇄솔
unhusked rice%moisture content%cracking rate%breakage rate
以稻谷品种"准两优"和"中加早"为试验材料,研究水分含量为22%的稻谷籽粒分别在45、55、65℃下干燥处理0、20、40、60、80、100、120、150、180 min后含水量、裂纹率、吸光度和破碎率变化.研究结果表明:随着干燥处理时间的延长,2个稻谷品种含水量逐渐降低,去壳稻谷的裂纹率逐渐增加,其固绿染液的吸光度数值整体呈现增加趋势.随着干燥处理温度的升高,高水分稻谷达到储藏安全水分含量的时间也相对越短.在65℃下干燥处理120 min后,准两优和中加早稻谷含水量分别达12.40%、12.43%,其裂纹率也相对增加.在较高温度下干燥,随着干燥处理时间的延长,稻谷加工成糙米破碎率增加,染色籽粒的数量随之增加,破碎籽粒的染色面积扩大,品种之间无明显差异.
以稻穀品種"準兩優"和"中加早"為試驗材料,研究水分含量為22%的稻穀籽粒分彆在45、55、65℃下榦燥處理0、20、40、60、80、100、120、150、180 min後含水量、裂紋率、吸光度和破碎率變化.研究結果錶明:隨著榦燥處理時間的延長,2箇稻穀品種含水量逐漸降低,去殼稻穀的裂紋率逐漸增加,其固綠染液的吸光度數值整體呈現增加趨勢.隨著榦燥處理溫度的升高,高水分稻穀達到儲藏安全水分含量的時間也相對越短.在65℃下榦燥處理120 min後,準兩優和中加早稻穀含水量分彆達12.40%、12.43%,其裂紋率也相對增加.在較高溫度下榦燥,隨著榦燥處理時間的延長,稻穀加工成糙米破碎率增加,染色籽粒的數量隨之增加,破碎籽粒的染色麵積擴大,品種之間無明顯差異.
이도곡품충"준량우"화"중가조"위시험재료,연구수분함량위22%적도곡자립분별재45、55、65℃하간조처리0、20、40、60、80、100、120、150、180 min후함수량、렬문솔、흡광도화파쇄솔변화.연구결과표명:수착간조처리시간적연장,2개도곡품충함수량축점강저,거각도곡적렬문솔축점증가,기고록염액적흡광도수치정체정현증가추세.수착간조처리온도적승고,고수분도곡체도저장안전수분함량적시간야상대월단.재65℃하간조처리120 min후,준량우화중가조도곡함수량분별체12.40%、12.43%,기렬문솔야상대증가.재교고온도하간조,수착간조처리시간적연장,도곡가공성조미파쇄솔증가,염색자립적수량수지증가,파쇄자립적염색면적확대,품충지간무명현차이.
Unhusked rice zhunliangyou and zhongjiazao with moisture content of 22% were used as experiment samples,and were dried at 45,55 and 65℃ for 0,20,40,60,80,100,120,150 and 180 min.The change of their moisture content,cracking rate and OD value and breakage rate was investigated in laboratory.The results showed that the moisture content of two kinds of unhusked rice decreased with the increasing drying time,and the cracking rate of husked rice and the OD of FCF dye in-creased.The higher the drying temperature,the shorter the time reaching the safe moisture content of storage for high moisture content unhusked rice.Moisture contents of unhusked rice zhunliangyou and zhongjiazao dried at 65℃ for 120 min were 12.40% and 12.43% respectively,and their cracking rate also increased accordingly.With higher temperature drying,the breakage rate of brown rice processed from unhusked rice,the number of dyeing kernels and the staining area of breakage kernel increased with increasing drying time.There was no significantly different between the two varieties.