| 冻干咖啡粉的研制及风味品质特性研究 |
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| 引用本文： | 胡荣锁,段其站,董文江,陈治华,蒋快乐,山云辉,宗迎,龙宇宙.冻干咖啡粉的研制及风味品质特性研究[J].热带作物学报,2019,40(8):1618-1625. |
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| 作者姓名： | 胡荣锁 段其站 董文江 陈治华 蒋快乐 山云辉 宗迎 龙宇宙 |
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| 作者单位： | 1. 中国热带农业科学院香料饮料研究所,海南万宁 5715332. 云南农业大学热带作物学院,云南普洱 6650003. 国家重要热带作物工程技术研究中心,海南万宁 5715334. 海南省热带香料饮料作物工程技术研究中心,海南万宁 5715335. 德宏后谷咖啡有限公司,云南德宏 678400 |
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| 基金项目： | 国家自然科学基金项目(No.31872888);海南省自然科学基金创新研究团队项目(No.2019CXTD416);中央级公益性科研院所基本科研业务费专项(No.1630142017005) |
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| 摘 要： | 冻干咖啡粉的研制可提高咖啡产品的商业价值和咖啡行业经济效益。以单因素加热板温度、物料装载厚度和干燥室压强对干燥速率的影响,确定最佳范围后进行响应面实验设计得到咖啡粉最佳干燥工艺参数并对优化条件下的冻干咖啡粉进行品质分析。通过响应面得到冻干咖啡粉理想参数条件为：加热板温度76.19 ℃,物料装载厚度1.58 cm,干燥室压强76.84 Pa,实际干燥速率为0.23 h -1,理论干燥速率为0.22 h -1;并且3个因素对干燥速率的影响排序为加热板温度>物料装载厚度>干燥室压。品质分析得出冻干咖啡粉的含水率达到3.82%,色差、气味、口感均无显著性差异（P<0.05）。通过咖啡冻干加工工艺参数的优化,为冻干咖啡粉工业化生产提供技术支持。
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| 关 键 词： | 咖啡 真空冷冻干燥 冻干咖啡粉 品质 |
| 收稿时间： | 2018-12-05 |
Preparation and Flavor Quality Characteristics of Freeze-dried Coffee Powder |
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| HU Rongsuo,DUAN Qizhan,DONG Wenjiang,CHEN Zhihua,JIANG Kuaile,SHAN Yunhui,ZONG Ying,LONG Yuzhou.Preparation and Flavor Quality Characteristics of Freeze-dried Coffee Powder[J].Chinese Journal of Tropical Crops,2019,40(8):1618-1625. |
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| Authors: | HU Rongsuo DUAN Qizhan DONG Wenjiang CHEN Zhihua JIANG Kuaile SHAN Yunhui ZONG Ying LONG Yuzhou |
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| Abstract: | The preparation of freeze-dried coffee powder can improve the commercial value and economic benefits of coffee industry. The optimal ideal parameters of the freeze-dried coffee powder were obtained: the heating plate temperature 76.19 ℃, the material loading thickness 1.58 cm, drying chamber pressure 76.84 Pa, the real drying rate 0.23 h -1, and the theory drying rate 0.22 h -1. The influencing order of the three factors on the drying rate was heating plate temperature>material loading thickness>drying chamber pressure. The quality analysis showed that the water content of the freeze-dried coffee powder reached 3.82%, and there were no significant differences in color, smell and taste (P<0.05). This study would provide technical support for the industrial production of freeze-dried coffee powder. |
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| Keywords: | coffee vacuum freeze drying freeze-dried coffee powder quality |
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