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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Chemical Characterization and Biotechnological Applicability of Pigments Isolated from Antarctic Bacteria

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Silva, Tiago R. [1, 2] ; Tavares, Renata S. N. [3] ; Canela-Garayoa, Ramon [4] ; Eras, Jordi [4] ; Rodrigues, Marili V. N. [5, 6] ; Neri-Numa, Iramaia A. [7] ; Pastore, Glaucia M. [7] ; Rosa, Luiz H. [8] ; Schultz, Jose A. A. [9] ; Debonsi, Hosana M. [3] ; Cordeiro, Lorena R. G. [3] ; Oliveira, Valeria M. [2]
Total Authors: 12
[1] Campinas State Univ UNICAMP, Inst Biol, POB 6109, Campinas, SP - Brazil
[2] Univ Estadual Campinas, Chem Biol & Agr Pluridisciplinary Res Ctr CPQBA, Div Microbial Resources, Campinas, SP - Brazil
[3] Univ Sao Paulo, Sch Pharmaceut Sci Ribeirao Preto, Sao Paulo, SP - Brazil
[4] Univ Lleida, Dept Chem, ETSEA, Agrotecnio Ctr, Lleicla - Spain
[5] Univ Estadual Campinas, Chem Biol & Agr Pluridisciplinary Res Ctr CPQBA, Campinas, SP - Brazil
[6] Univ Estadual Campinas, Dept Organ Chem, Campinas, SP - Brazil
[7] Univ Estadual Campinas, Sch Food Engn, Dept Food Sci, UNICAMP, Campinas, SP - Brazil
[8] Univ Fed Minas Gerais, Inst Biol Sci, Dept Microbiol, Belo Horizonte, MG - Brazil
[9] Telcel, Dept Data Sci, Mexico City, DF - Mexico
Total Affiliations: 9
Document type: Journal article
Source: MARINE BIOTECHNOLOGY; v. 21, n. 3, p. 416-429, JUN 2019.
Web of Science Citations: 1

Considering the global trend in the search for alternative natural compounds with antioxidant and sun protection factor (SPF) boosting properties, bacterial carotenoids represent an opportunity for exploring pigments of natural origin which possess high antioxidant activity, lower toxicity, no residues, and no environmental risk and are readily decomposable. In this work, three pigmented bacteria from the Antarctic continent, named Arthrobacter agilis 50cyt, Zobellia laminarie 465, and Arthrobacter psychrochitiniphilus 366, were able to withstand UV-B and UV-C radiation. The pigments were extracted and tested for UV absorption, antioxidant capacity, photostability, and phototoxicity profile in murine fibroblasts (3T3 NRU PT-OECD TG 432) to evaluate their further potential use as UV filters. Furthermore, the pigments were identified by ultra-high-performance liquid chromatography-photodiode array detector-mass spectrometry (UPLC-PDA-MS/MS). The results showed that all pigments presented a very high antioxidant activity and good stability under exposure to UV light. However, except for a fraction of the A. agilis 50cyt pigment, they were shown to be phototoxic. A total of 18 different carotenoids were identified from 23 that were separated on a C18 column. The C50 carotenes bacterioruberin and decaprenoxanthin (including its variations) were confirmed for A. agilis 50cyt and A. psychrochitiniphilus 366, respectively. All-trans-bacterioruberin was identified as the pigment that did not express phototoxic activity in the 3T3 NRU PT assay (MPE <0.1). Zeaxanthin, -cryptoxanthin, -carotene, and phytoene were detected in Z. laminarie 465. In conclusion, carotenoids identified in this work from Antarctic bacteria open perspectives for their further biotechnological application towards a more sustainable and environmentally friendly way of pigment exploitation. (AU)

FAPESP's process: 16/05640-6 - Multi-omics applied to the understanding and exploitation of Antarctic microbiomes
Grantee:Valeria Maia Merzel
Support Opportunities: Regular Research Grants
FAPESP's process: 17/21790-0 - Chemical characterization of pigments of biotechnological interest from bacteria isolated from Antarctica
Grantee:Tiago Rodrigues e Silva
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 14/17936-1 - Microbial prospecting for antibiotics and pigments from bacteria isolated from Antarctica.
Grantee:Tiago Rodrigues e Silva
Support Opportunities: Scholarships in Brazil - Doctorate