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超微粉碎对牡蛎壳粉体学性质和溶出度的影响 Δ
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秦贞苗 ,邓静英 ,张丹蕾 ,班俊峰 (1.海南医学院药学院,海口 571199;2.广东药科大学,广州 510006)
中图分类号 R284.1 文献标志码 A 文章编号 1001-0408(2019)16-2216-05
DOI 10.6039/j.issn.1001-0408.2019.16.11
摘 要 目的:考察超微粉碎对牡蛎壳粉体学性质和溶出度的影响,为牡蛎壳综合开发利用提供实验依据。方法:牡蛎壳以粉碎
机制备成普通粉,再将普通粉以超微粉碎机制备成微粉Ⅰ(粉碎5 min)和微粉Ⅱ(粉碎10 min)。从粉体粒径分布、比表面积、孔隙
度、休止角、堆密度、吸湿率等方面考察牡蛎壳超微粉碎前后的粉体学差异,采用扫描电镜、傅里叶变换红外光谱(FTIR)和X射线
衍射(XRD)等分析其形态特征和化学结构的变化情况,并考察其溶出度。结果:与普通粉比较,微粉Ⅰ和微粉Ⅱ粒径小且分布均
匀,但粒子易黏附聚集,比表面积、孔隙度及休止角增大,堆密度减少,吸湿性增强;FTIR和XRD图谱显示牡蛎壳超微粉碎后化学
结构无明显变化。微粉Ⅱ和微粉Ⅰ在10 min时溶出度分别为18.5%和10.3%,普通粉在60 min时溶出度只有6.4%。结论:与普
通粉比较,牡蛎壳超微粉碎后的粉体学性质呈现出明显差异,粉体溶出度增加,化学结构未发生明显变化。
关键词 超微粉碎;牡蛎壳;粉体学性质;溶出度
Effects of Superfine Grinding Technology on Powder Properties and Dissolution of Oyster Shell
QIN Zhenmiao ,DENG Jingying ,ZHANG Danlei ,BAN Junfeng(1. School of Pharmacy,Hainan Medical
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College,Haikou 571199,China;2. Guangdong Pharmaceutical University,Guangzhou 510006,China)
ABSTRACT OBJECTIVE:To study the effects of superfine grinding on the powder properties and dissolution of oyster shell,
and to provide experimental basis for its comprehensive exploitation. METHODS:Oyster shells were firstly prepared into ordinary
powder by grinder. Then the ordinary powder was prepared into micro-powder Ⅰ(crushing 5 min)and Ⅱ(crushing 10 min)by
ultrafine pulverizer. The differences of micromeritic properties were investigated before and after superfine grinding from the aspects
of particle size distribution,specific surface area and porosity,angle of repose,bulk density,hygroscopicity,etc. Scanning
electron microscope(SEM),Fourier transform infrared spectroscopy(FTIR)and X-ray powder diffraction(XRD)techniques were
used to analyze the morphological characteristics and chemical structure of oyster shell before and after superfine grinding. The
dissolution were investigated. RESULTS:Compared with ordinary powder,micropowder Ⅰ and micropowder Ⅱ’s were small in
particle size and uniformly distributed,but the particles were easy to adhere and aggregate;the specific surface area,porosity and
the angle of repose increased,while bulk density decreased;the hygroscopicity increased. FTIR and XRD showed no significant
change in chemical structure of oyster shell after superfine grinding. The dissolution rate of micropowder Ⅱ and micropowder Ⅰ
was 18.5% and 10.3% at 10 min,and the dissolution of ordinary powder was only 6.4% at 60 min. CONCLUSIONS:Compared
with ordinary powder,oyster shell show obvious differences in powder properties after superfine grinding;the dissolution rate of
the powders increases,and there is no significant change in chemical structure.
KEYWORDS Superfine grinding;Oyster shell;Powder properties;Dissolution
牡蛎是国家卫生部公布的第一批药食同源的食品 trearivularis Gould)的贝壳 。牡蛎壳中含碳酸钙 94%
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之一,而牡蛎壳一直以来均作为传统中药材使用,其来 以上,同时还含有铜、铁、锌、锰、锶、铬、镍等20多种微量
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源为牡蛎科动物长牡蛎(Ostreagigas Thunberg)、大连湾 元素和甘氨酸、胱氨酸、蛋氨酸等17种氨基酸 ,具有重
牡 蛎(Ostreatalienwhanensis Crosse)或 近 江 牡 蛎(Os- 镇安神、潜阳补阴、软坚散结等功效,单独使用或与其他
Δ 基金项目:海南省自然科学基金资助项目(No.817137);海南省 药物配伍使用,可用于治疗惊厥失眠、眩晕耳鸣、自汗盗
高等学校科学研究项目(No.Hnky2018-45) 汗、胃痛吞酸等病症 。但是,牡蛎壳中钙的溶解性差、
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*实验师,硕士。研究方向:热带药用资源的开发利用。电话:
吸收率低,这限制了其开发利用。
0898-66893826。E-mail:691173738@qq.com
超微粉碎技术是近 20 年发展起来的一种物料加工
# 通信作者:助理研究员,硕士。研究方向:药物新剂型与新技
术。电话:020-39352367。E-mail:banjunfeng@163.com 新技术,目前已广泛应用于中药粉碎,该技术能把中药
·2216 · China Pharmacy 2019 Vol. 30 No. 16 中国药房 2019年第30卷第16期