Antioxidant capacity of novel pigments from an Antarctic bacterium

Correa-Llantén, Daniela N.; Amenábar, Maximiliano J.; Blamey, Jenny M.

doi:10.1007/s12275-012-2029-1

Cited by 52 publications

(28 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This amount is comparable to well‐known antioxidants like β ‐carotene and α ‐tocopherol, for which the EC 50 scavenging capacities are reported as 3·5 and 1·5 mg ml − respectively (Correa‐Llantén et al . ).…”

Section: Resultsmentioning

confidence: 97%

A novel red pigment from marineArthrobactersp. G20 with specific anticancer activity

et al. 2017

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 97%

A novel red pigment from marineArthrobactersp. G20 with specific anticancer activity

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Similarly, the antioxidant activity of carotenoid pigment from an antarctic bacterium Pedobacter was evaluated. The pigment possessed strong antioxidant capacity and protected the bacterium against oxidative damage (Correa Llanten et al, 2012). The above reports suggest that microbial pigments used as antioxidants may prevent the incidence of many diseases such as cancer and heart disease.…”

Section: Types Of Pigmentsmentioning

confidence: 99%

Fungal and Bacterial Pigments: Secondary Metabolites with Wide Applications

2017

View full text Add to dashboard Cite

The demand for natural colors is increasing day by day due to harmful effects of some synthetic dyes. Bacterial and fungal pigments provide a readily available alternative source of naturally derived pigments. In contrast to other natural pigments, they have enormous advantages including rapid growth, easy processing, and independence of weather conditions. Apart from colorant, bacterial and fungal pigments possess many biological properties such as antioxidant, antimicrobial and anticancer activity. This review outlines different types of pigments. It lists some bacterial and fungal pigments and current bacterial and fungal pigment status and challenges. It also focuses on possible fungal and bacterial pigment applications.

show abstract

“…Antarctica is one of the most extreme and pristine environments on Earth. Along with low temperatures and low water activities, high ultraviolet (UV) radiation is also present in this continent [1][2][3][4]. These environmental stresses trigger the generation of reactive oxygen species (ROS), including superoxide anions (O 2 − ), hydrogen peroxide (H 2 O 2 ), and the highly reactive hydroxyl radicals ( • OH), which could lead to oxidative stress if the antioxidant mechanisms of the cell are overcome by pro-oxidant agents [3].…”

Section: Introductionmentioning

confidence: 99%

“…Along with low temperatures and low water activities, high ultraviolet (UV) radiation is also present in this continent [1][2][3][4]. These environmental stresses trigger the generation of reactive oxygen species (ROS), including superoxide anions (O 2 − ), hydrogen peroxide (H 2 O 2 ), and the highly reactive hydroxyl radicals ( • OH), which could lead to oxidative stress if the antioxidant mechanisms of the cell are overcome by pro-oxidant agents [3]. These species are highly reactive, causing oxidative damage and altering the structure and function of macromolecules, such as DNA, lipids, and proteins [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Isolation of a Psychrotolerant and UV-C-Resistant Bacterium from Elephant Island, Antarctica with a Highly Thermoactive and Thermostable Catalase

Monsalves¹,

Ollivet-Besson²,

Amenábar³

et al. 2020

Microorganisms

Self Cite

View full text Add to dashboard Cite

Microorganisms present in Antarctica have to deal not only with cold temperatures but also with other environmental conditions, such as high UV radiation, that trigger the generation of reactive oxygen species. Therefore, Antarctic microorganisms must have an important antioxidant defense system to prevent oxidative damage. One of these defenses are antioxidant enzymes, such as catalase, which is involved in the detoxification of hydrogen peroxide produced under oxidative conditions. Here, we reported the isolation and partial characterization of an Antarctic bacterium belonging to the Serratia genus that was resistant to UV-C radiation and well-adapted to cold temperatures. This microorganism, denominated strain I1P, was efficient at decreasing reactive oxygen species levels produced after UV-C irradiation. Genomic and activity assays suggested that the enzymatic antioxidant defense mechanisms of strain I1P, especially its catalase enzyme, may confer UV resistance. This catalase was active in a wide range of temperatures (20–70 °C), showing optimal activity at 50 °C (at pH 7.0), a remarkable finding considering its psychrotolerant origin. In addition, this enzyme was thermostable, retaining around 60% of its activity after 6 h of incubation at 50 °C. The antioxidant defense systems of strain I1P, including its surprisingly thermoactive and thermostable catalase enzyme, make this microorganism a good source of biocompounds with potential biotechnological applications.

show abstract

Antioxidant capacity of novel pigments from an Antarctic bacterium

Cited by 52 publications

References 20 publications

A novel red pigment from marineArthrobactersp. G20 with specific anticancer activity

A novel red pigment from marineArthrobactersp. G20 with specific anticancer activity

Fungal and Bacterial Pigments: Secondary Metabolites with Wide Applications

Isolation of a Psychrotolerant and UV-C-Resistant Bacterium from Elephant Island, Antarctica with a Highly Thermoactive and Thermostable Catalase

Contact Info

Product

Resources

About