以闽西红肉蜜柚为材料,探讨了红肉蜜柚果汁粉生产中的酶法取汁和喷雾干燥等问题。结果表明:红肉蜜柚酶法取汁的最佳工艺条件为果胶酶用量0.08%,纤维素酶用量0.2%,50℃酶解2 h,此时的出汁率为85.8%;喷雾干燥的最佳工艺条件是40%β-环糊...以闽西红肉蜜柚为材料,探讨了红肉蜜柚果汁粉生产中的酶法取汁和喷雾干燥等问题。结果表明:红肉蜜柚酶法取汁的最佳工艺条件为果胶酶用量0.08%,纤维素酶用量0.2%,50℃酶解2 h,此时的出汁率为85.8%;喷雾干燥的最佳工艺条件是40%β-环糊精为助干剂,进料流量10 m L/min,进风温度170℃,出风温度60℃,以产品的出粉率、维生素C含量和感官状态为指标,所得红肉蜜柚果汁粉的综合评价最高。展开更多
研究喷雾干燥过程中麦芽糊精添加量和进风温度对脱苦柠檬果汁粉集粉率、Vc、可溶性糖和可滴定酸等指标的影响,优化得出脱苦柠檬果汁粉最佳喷雾干燥工艺为麦芽糊精添加量为25%,进风温度为190℃,出风温度为80℃,离心泵转速60 r/min,流量...研究喷雾干燥过程中麦芽糊精添加量和进风温度对脱苦柠檬果汁粉集粉率、Vc、可溶性糖和可滴定酸等指标的影响,优化得出脱苦柠檬果汁粉最佳喷雾干燥工艺为麦芽糊精添加量为25%,进风温度为190℃,出风温度为80℃,离心泵转速60 r/min,流量泵流速10 m L/min,此条件下所得脱苦柠檬果汁粉呈淡黄色,溶解性好,营养丰富,具有柠檬香味。经过混料、造粒、干燥整形、压片、灭菌和包装等工艺流程,进一步制得表面光滑、色泽浅黄、崩解性好、溶解性优良,口感酸甜适中,具有柠檬香味和营养丰富的脱苦柠檬果汁粉含片。展开更多
The mycotoxin, patulin （4-hydroxy-4H-furo [3, 2c] pyran-2 [6H]-one）, is produced by a number of fungi common to fruit and vegetable-based products, most notably apples. Patulin contamination within apple products po...The mycotoxin, patulin （4-hydroxy-4H-furo [3, 2c] pyran-2 [6H]-one）, is produced by a number of fungi common to fruit and vegetable-based products, most notably apples. Patulin contamination within apple products poses a serious health risk to consumers. Studies done on laboratory animals have demonstrated that patulin has a broad spectrum of toxicity, including mutagen city and carcinogenicity. The aim of the experiment was studying influence of selectively acting activated carbon powder--Ercarbon SH （Erbsloh, Germany） which is special produced for lowering HMF （hydroxy methyl furfural）, on reduction of patulin content in clear apple juice. Industrial apple row material with some damaged parts was pressed, juice was pasteurized at 95 ℃ during 2 min. After cooling on 55 ℃, enzymatic treated and clarified juice were filtered by 0.45 [am pore sizes membrane filter, Apple clear juice sample was divided for five parts. The samples of apple juice were diluted to 11.5° Brix and contacted with concentrations of 2, 2.5, 3 and 3.5 g/L activated carbon powder for 30 min. After filtration in the experimental samples, putulin was quantitatively determined by HPLC （high performance liquid chromatography with UV） detector at 276 nm. The research revealed that the best results were achieved by treatment with activated carbon in its powder form at concentration of 2.5 g/L with 30 min contact time.展开更多
文摘以闽西红肉蜜柚为材料,探讨了红肉蜜柚果汁粉生产中的酶法取汁和喷雾干燥等问题。结果表明:红肉蜜柚酶法取汁的最佳工艺条件为果胶酶用量0.08%,纤维素酶用量0.2%,50℃酶解2 h,此时的出汁率为85.8%;喷雾干燥的最佳工艺条件是40%β-环糊精为助干剂,进料流量10 m L/min,进风温度170℃,出风温度60℃,以产品的出粉率、维生素C含量和感官状态为指标,所得红肉蜜柚果汁粉的综合评价最高。
文摘研究喷雾干燥过程中麦芽糊精添加量和进风温度对脱苦柠檬果汁粉集粉率、Vc、可溶性糖和可滴定酸等指标的影响,优化得出脱苦柠檬果汁粉最佳喷雾干燥工艺为麦芽糊精添加量为25%,进风温度为190℃,出风温度为80℃,离心泵转速60 r/min,流量泵流速10 m L/min,此条件下所得脱苦柠檬果汁粉呈淡黄色,溶解性好,营养丰富,具有柠檬香味。经过混料、造粒、干燥整形、压片、灭菌和包装等工艺流程,进一步制得表面光滑、色泽浅黄、崩解性好、溶解性优良,口感酸甜适中,具有柠檬香味和营养丰富的脱苦柠檬果汁粉含片。
文摘The mycotoxin, patulin （4-hydroxy-4H-furo [3, 2c] pyran-2 [6H]-one）, is produced by a number of fungi common to fruit and vegetable-based products, most notably apples. Patulin contamination within apple products poses a serious health risk to consumers. Studies done on laboratory animals have demonstrated that patulin has a broad spectrum of toxicity, including mutagen city and carcinogenicity. The aim of the experiment was studying influence of selectively acting activated carbon powder--Ercarbon SH （Erbsloh, Germany） which is special produced for lowering HMF （hydroxy methyl furfural）, on reduction of patulin content in clear apple juice. Industrial apple row material with some damaged parts was pressed, juice was pasteurized at 95 ℃ during 2 min. After cooling on 55 ℃, enzymatic treated and clarified juice were filtered by 0.45 [am pore sizes membrane filter, Apple clear juice sample was divided for five parts. The samples of apple juice were diluted to 11.5° Brix and contacted with concentrations of 2, 2.5, 3 and 3.5 g/L activated carbon powder for 30 min. After filtration in the experimental samples, putulin was quantitatively determined by HPLC （high performance liquid chromatography with UV） detector at 276 nm. The research revealed that the best results were achieved by treatment with activated carbon in its powder form at concentration of 2.5 g/L with 30 min contact time.
