Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba)

被引：27

作者：

Peng, Yuanhuai ^{[1
,3
]}

Ji, Wei ^{[2
]}

Zhang, Di ^{[1
]}

Ji, Hongwu ^{[1
]}

Liu, Shucheng ^{[1
]}

机构：

[1] Guangdong Ocean Univ, Coll Food Sci & Technol, Guangdong Prov Key Lab Aquat Prod Proc & Safety, Key Lab Adv Proc Aquat Prod Guangdong Higher Educ, Zhanjiang 524088, Peoples R China

[2] Guangdong Univ Educ, Coll Biol & Food Engn, Guangzhou 510303, Guangdong, Peoples R China

[3] Lingnan Normal Univ, Sch Chem & Chem Engn, Zhanjiang 524048, Peoples R China

来源：

SCIENTIFIC REPORTS | 2019年 / 9卷 / 1期

基金：

中国国家自然科学基金;

关键词：

HYDROXYAPATITE; CHITIN; PROPERTY; SHELL;

D O I：

10.1038/s41598-019-44337-6

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Ash of Antarctic krill integument (AAKI) was prepared by sintering the integument at 550 degrees C under air atmosphere for 4 hours, and its composition was analyzed by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and electron dispersive spectroscopy (EDS). XRD results showed that the major phase in AAKI was ascribed to apatite. Besides, it was noticed that the (300) peak of AAKI shifted to 33.07 degrees, which was coincident with that of fluorapatite (FA). The FTIR results confirmed the presence of phosphate ions, and the absence of -OH. The EDS results confirmed the presence of Ca, P, O and F elements in the ash sample. The content of FA in the ash was determined to be 50.4%, and the proportion of fluorine in the form of FA to the total fluorine in the integument was 40.5%. Based on the XRD, FTIR and EDS results, it can be concluded that FA was the main form of fluoride in the integument of Antarctic krill.

引用

页数：6

共 31 条

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