Photostabilization of phycocyanin from Spirulina platensis modified by formaldehyde

被引：43

作者：

Munawaroh, Heli Siti Halimatul ^{[1
]}

Gumilar, Gun Gun ^{[1
]}

Alifia, Chindiar Rizka ^{[1
]}

Marthania, Meganita ^{[1
]}

Stellasary, Bianca ^{[1
]}

Yuliani, Galuh ^{[1
]}

Wulandari, Asri Peni ^{[2
]}

Kurniawan, Isman ^{[3
]}

Hidayat, Rahmat ^{[4
]}

Ningrum, Andriati ^{[5
]}

Koyande, Apurav Krishna ^{[6
]}

Show, Pau-Loke ^{[6
]}

机构：

[1] Univ Pendidikan Indonesia, Dept Chem Educ, Study Program Chem, Bandung 40154, Indonesia

[2] Univ Padjajaran, Dept Biol, Sumedang 45363, Indonesia

[3] Univ Telkom, Sch Comp, Bandung 40257, Indonesia

[4] Inst Teknol Bandung, Phys Magnetism & Photon Div, Bandung 40132, Indonesia

[5] Univ Gadjah Mada, Dept Food Technol & Agr Results, Di Yogyakarta 55281, Indonesia

[6] Univ Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, Malaysia

来源：

PROCESS BIOCHEMISTRY | 2020年 / 94卷

关键词：

Formaldehyde crosslink; Photostability; Phycocyanin modified; Spirulina platensis; Thermal stability; RESPONSE-SURFACE OPTIMIZATION; IMPRINTING MICROSPHERES; LIPID EXTRACTION; CROSS-LINKING; PURIFICATION; MICROALGAE; FLUORESCENT; PIGMENT; FILMS;

D O I：

10.1016/j.procbio.2020.04.021

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Spirulina platensis contain variety of pigments, such as chlorophylls, carotenoids, and phycocyanin. Phycocyanin (PC) exists in abundance, but due to its instability, the utilization of this pigment is still very limited. In this study, the PC was modified using formaldehyde crosslinks yielding phycocyanin-formaldehyde (PC-F), and its photostability was evaluated. The PC-F formation was designated by the distinctive alterations of the maximum absorption to 611 nm, which was 10 nm blue-shifted than those of the PC. Additionally, the sharp peaks of FTIR spectra at 1636 nm for -C=O and at 1019 nm for -C-O-C, suggesting the interaction of phycocyanin with formaldehyde. The PC-F showed stabilization improvement up to 1.53-folds after 300 mins of yellow light exposure than those of PC. Contrary to yellow light irradiation, a severe decrease of PC-F absorbance was observed reach to 4.9-folds under UV-B irradiation. The poor stability of PC-F upon white light and UV-A irradiation were indicated by the decline of PC-F absorbance up to 1.72 and 1.80, respectively. Moreover, the present study suggests that the modification of phycocyanin by formaldehyde crosslink can increase photostability upon yellow light irradiation.

引用

页码：297 / 304

页数：8

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