|
|
|
|
|
|
| Spectroscopic Characteristics and Color Origin of Blue Coral |
| LI Yu-tian1, 2, YU Hai-yan1, 2*, ZHANG Ke-xuan1, 2, BAI He1, 2, ZHANG Yu-ye1, 2 |
1. School of Earth Sciences, Guilin University of Technology, Guilin 541006, China
2. Guangxi Key Laboratory of Concealed Metal Mineral Exploration, Guilin 541006, China
|
|
|
|
|
Abstract Blue coral is a rare coral species. Previous studies have confirmed that the color of blue coral is related to biliverin from a biological point of view. Still, there is no relevant spectral evidence and a lack of microstructure studies, so the explanation for the color of blue coral is murky. Based on this, according to the absorption band of the infrared transmission spectrum of blue coral from 4 000 to 2 000 cm-1, this paper shows that blue coral contains certain organic matter, and the organic matter content is positively correlated with the color depth. The characteristic Raman peaks of biliverdin were found at 1 616, 1 542, 1 459, 1 356, 1 314, 1 264, 1 167 and 970 cm-1 in the blue region of blue coral. The absorption bands in the UV-VIS spectra of 286, 357, and 590 nm are also consistent with the absorption bands of biliverdin. The above spectral characteristics indicate that the blue color of blue coral is related to biliverdin. Secondly, the micromorphologic characteristics and composition analysis of blue coral showed that the pores formed by blue coral polyps were approximately parallel longitudinally, and the holes were superimposed in segments. From the inner surface of the pores (spiniform aragonite) to the periphery of the pores (lamellar aragonite) to between the pores (columnar aragonite), the content of organic matter decreases significantly as the color changes from blue to white. Combined with the previous research results, it can be inferred that the exudation of keratin and calcareous substance from the ectoderm of polyps forms the white aragonite between the pores. After the polyps die, the endoderm and the nematocytes on the surface of the endoderm become fossilized, preserving the organic matter in the polyps, which contains biliverdin, causing the blue color of the blue coral.
|
|
Received: 2023-09-01
Accepted: 2024-03-14
|
|
|
|
Corresponding Authors:
YU Hai-yan
E-mail: 575976579@qq.com
|
|
[1] ZOU Ren-lin, GAN Zi-jun, CHEN Shao-mou, et al(邹仁林, 甘子均，陈绍谋, 等). Red Coral(红珊瑚). Beijing: Science Press(北京：科学出版社), 1993. 4.
[2] ZHOU Pei-ling, YANG Zhong-yao(周佩玲, 杨忠耀). Organic Gemology(有机宝石学). Beijing: China University of Geosciences Press(北京：中国地质大学出版社), 2007.
[3] Richards Z T, Yasuda N, Kikuchi T, et al. Scientific Reports, 2018, 8(1): 15875.
[4] Zhang F F, Cai W Y, Zhu J C, et al. Analytical Chemistry, 2011, 83(20): 7870.
[5] Fang L S, Huang S P, Lin K L. Coral Reefs，1997，16：127.
[6] Hongo Y, Yasuda N, Nagal S. Biol. Bull., 2017, 232: 71.
[7] XU Zhi, LI Rui, GUO Qian, et al(徐 志, 李 锐, 郭 倩, 等). Infrared Technology(红外技术), 2015, 37(2): 171.
[8] XIA Jing-fen, QIAN Guo-ying, CHEN Liang, et al(夏静芬，钱国英，陈 亮, 等). Chinese Journal of Spectroscopy Laboratory(光谱实验室), 2010, 27(2): 524.
[9] LIU Gang, XING Da, YANG Hai-min, et al(刘 刚, 邢 达, 杨海珉，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2002, 22(4): 591.
[10] WANG Jian, BAI Yi-zhen, ZHANG Dong, et al(王 健, 白亦真, 张 东，等). Journal of Jilin University(Science Edition)[吉林大学学报(理学版)], 2010, 48(6): 1027.
[11] ZHANG Lan, FAN Li-jun, WANG Lu(张 拦, 范利君, 王 璐). Journal of Luoyang Institute of Science and Technology(Natural Science Edition)[洛阳理工学院学报(自然科学版)], 2011, 21(2): 1.
[12] HU Rui-sheng, LIU Hui-ru, GU Dan-dan, et al(胡瑞省, 刘会茹, 顾丹丹，等). Experimental Technology and Management(实验技术与管理), 2014, 31(10): 71.
[13] HU Jun, FANG Qing, LIN Xi-feng, et al(胡 军, 方 清, 林栖凤, 等). Acta Laser Biology Sinica(激光生物学报), 2000，(4): 299.
[14] ZHOU Xing-rao, HE Ji-ping, LU Xian-dan, et al(周性尧, 何季平, 鲁贤丹, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 1995, 15(4): 45.
[15] WANG Lin, ZHENG Wen-jie(王 霖, 郑文杰). Journal of Guangdong University of Education(广东教育学院学报), 2000，(3): 68.
|
| [1] |
ZHOU Dan-yi1, LU Tai-jin1, LIU Yu-peng1, 2. The Significance of Photoluminescence Spectra With the Excitation
Wavelength of 473 nm for the Indication of Pearl Types and
Color Origin[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3060-3063. |
| [2] |
TANG Yan1, 3, WU Jia1, XU Jian-jie2*, GUO Teng-xiao2, HU Jian-bo1, 4, ZHANG Hang4, LIU Yong-gang5*, YANG Yun-fan4. Analysis of Near-Infrared Anharmonic Vibration Spectra of Amino Acids
Using Density Functional Theory[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3149-3156. |
| [3] |
YU Xin-ran1, 3, ZHAO Peng2, HUAN Ke-wei2, LI Ye2, JIANG Zhi-xia1, 3, ZHOU Lin-hua1, 3*. Research on Intelligent Algorithm of Near-Infrared Spectroscopy
Non-Invasive Detection Based on GA-SVR Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3020-3028. |
| [4] |
JI Yi-min1, 2, TAN Tu2*, GAO Xiao-ming1, 2*, LIU Kun1, 2, WANG Gui-shi2. Research on the Method of Real-Time Correction of Optical Path Length in Multi-Pass Cell for Methane Concentration Measurement[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3029-3036. |
| [5] |
YANG Cheng-en1, 2, GUO Rui-xue1, 3, XIN Ming-hao2, LI Meng4, LI Yu-ting2*, SU Ling1, 3*. Quantitative Determination of Polyphenols in Aronia Melanocarpa (Michx.) Elliott. by Mid-Infrared Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3075-3081. |
| [6] |
WANG Hong-en, FENG Guo-hong*, XU Hua-dong, ZHANG Run-ze. Identification of Blueberry Ripeness Based on Visible-Near Infrared
Spectroscopy and Deep Forest[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3280-3286. |
| [7] |
ZHAO Gao-kun1, LI Jia-chen2, WU Yu-ping1*, LI Jun-hui2, KONG Guang-hui1, ZHANG Guang-hai1, YAO Heng1, LI Wei1, GAO Yan-lan1. Application of Near-Infrared Spectroscopy to Analyze the Similarity of Cigar Tobacco From Different Origins[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3195-3198. |
| [8] |
WANG Xue1, 2, 4, WANG Zi-wen1, ZHANG Guang-yue1, MA Tie-min1, CHEN Zheng-guang1, YI Shu-juan3, 4, WANG Chang-yuan2. A Universal Model for Quantitative Analysis of Near-Infrared
Spectroscopy Based on Transfer Component Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3213-3221. |
| [9] |
ZHANG Ke-xuan1, 2, YU Hai-yan1, 2*, BAI He1, 2, ZHANG Yu-ye1, 2. Study on Material Composition and Origin of Luodian Nephrite With “Pocking Mark” and “Grass Flower” in Guizhou Province[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3236-3243. |
| [10] |
LIU Xin-wei1, 2, WU De-hai2, 3*, WU Gai4*, WANG Chun-jie5. One Faceted Brown Diamond With Octahedral Diamond and Symmetrical Clouds Inclusion[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(11): 3244-3250. |
| [11] |
WANG De-ying1, 2, SHENG Wan-li3, ZOU Ming-qiang1, PEI Jia-huan1, 2, LUO Yun-jing2, QI Xiao-hua1*. Research Progress of Detection Based on Hydrogel Surface Enhanced
Raman Spectroscopy (SERS) Substrate[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(10): 2701-2708. |
| [12] |
MAO Li-yu1, 2, BIN Bin1*, ZHANG Hong-ming2*, LÜ Bo2, 3*, GONG Xue-yu1, YIN Xiang-hui1, SHEN Yong-cai4, FU Jia2, WANG Fu-di2, HU Kui5, SUN Bo2, FAN Yu2, ZENG Chao2, JI Hua-jian2, 3, LIN Zi-chao2, 3. Development of Wheat Component Detector Based on Near Infrared
Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(10): 2768-2777. |
| [13] |
JIANG Xiao-gang1, 2, HE Cong1, 2, JIANG Nan3, LI Li-sha1, ZHU Ming-wang1, LIU Yan-de1, 2*. Discrimination of Apple Origin and Prediction of SSC Based on
Multi-Model Decision Fusion[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(10): 2812-2818. |
| [14] |
ZHANG Yao-yao1, 2, FU Ying-chun1, 2, WEI Shu-ya1, 2*. The Identification and Analysis of the Modern Binding Media Based on Multiple Analytical Methods[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(10): 2785-2794. |
| [15] |
CHEN Heng-jie1, FANG Wang1, ZHANG Jia-wei1*, CHEN Shuang-kou2. The Experimental and Theoretical Study of Vibrational Spectroscopy for 2,5-Dichloropyrimidine[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(10): 2795-2804. |
|
|
|
|
