Bioremediation with Microalgae

Paniagua‐Michel, J.

doi:10.1016/b978-0-12-800776-1.00031-5

Cited by 5 publications

(5 citation statements)

References 63 publications

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“…[ 14 ] H. pluvialis , a well‐developed microaglae and a new dietary ingredient, has been noted by scientists for its abundant carotenoids (1.5–3% astaxanthin) for exerting numerous health benefits, such as anti‐oxidant, anti‐cancer, and immune enhancement among others. [ 13 ] However, there are few studies on the bioactivities of H. pluvialis compared to astaxanthin. Therefore, in this work, it is of great significance in focusing on the anti‐aging effects of H. pluvialis algal extract to explore its potential applications.…”

Section: Discussionmentioning

confidence: 99%

“…Microalgae is one of the earliest important life groups on the earth, with special biological characteristics having evolved over hundreds of millions of years. [13] Although microalgae accounts for 50% of the species in the plant kingdom, so far only few kinds, including Chlorella, Spirulina, Dunaliella salina, and H. pluvialis, had been developed due to the technical limitations. [14] H. pluvialis is widely known for its ability to accumulate notable amounts of secondary carotenoids, mainly astaxanthin, whose antioxidant activity is approximately 10 times higher than that of 𝛽-carotene and 500 times higher than that of vitamin E. [15] Studies have demonstrated that astaxanthin can effectively be accumulated in mitochondria and prevent mitochondrial dysfunction, suggesting that astaxanthin has potential anti-aging activity.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In addition, H. pluvialis was recognized as the best biological source of natural astaxanthin, was reviewed and cleared for marketing by the Food and Drug Administration as a new dietary ingredient in 1999. [13] More importantly, increasing evidence suggested that benefits of diet mixtures are significantly better than those of single food bioactive ingredient. [17] Therefore, we hypothesized that H. pluvialis might have the potential of improving age-related functional decline as an alternative bioactive source of astaxanthin.…”

Section: Introductionmentioning

confidence: 99%

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Haematococcus Pluvialis Extends Yeast Lifespan and Improves Slc25a46 Gene Knockout‐Associated Mice Phenotypic Defects

Wang

Liao

et al. 2021

Molecular Nutrition Food Res

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Scope: Aging has become one of major concern worldwide. It is therefore of great significance in finding food resources as therapeutic candidates for aging-related functional decline improvement and prevention. This study aimed to define the potency of Haematococcus pluvialis (H. pluvialis) as an anti-aging food resource. Methods and Results: Yeast is used to explore the anti-aging effects of H. pluvialis. The result showed that H. pluvialis extract could effectively extend yeast chronological lifespan (CLS) by reducing intracellular reactive oxygen species (ROS) levels, promoting mitochondrial membrane potential (MMP) levels and accumulating storage carbohydrate (glycogen). Subsequently, Slc25a46 knockout (Slc25a46 -/-) mice with mitochondrial dysfunction are fed with 100 mg kg −1 H. pluvialis extracts for 10 days. The in vivo data demonstrated that H. pluvialis extract could effectively improve the phenotypic deficits, including underweight, muscle weakness, redox imbalance, and mitochondrial respiratory chain dysfunction, etc., in Slc25a46 -/mice. Conclusions: This work highlights that the mitochondria may be a potential therapeutic target for combating aging, and demonstrated that H. pluvialis, as a dietary supplement, may potentially be an effective preventive substance that may contribute to the promotion of healthy aging.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Haematococcus Pluvialis Extends Yeast Lifespan and Improves Slc25a46 Gene Knockout‐Associated Mice Phenotypic Defects

Wang

Liao

et al. 2021

Molecular Nutrition Food Res

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“…However, these methods are with numerous adverse effects on the ecosystem. Biodegradation is generally accepted for many advantages; ranging from cost effectiveness to no adverse effects on the ecosystem [16,17].…”

Section: Introductionmentioning

confidence: 99%

Polyethylene Biodegradation Potentials of Pseudomonas aeruginosa and Micrococcus sp. Isolated from Waste Dumps and Farmlands in Nsukka, Enugu State, Nigeria

Chigor

Nwankwo

Ogbodo

et al. 2020

MRJI

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Background: Low Density Polyethylene (LDPE) are plastic materials extensively used in packaging, constituting recalcitrant environmental pollutants that defy natural degradation processes. Aim: This study isolated bacteria from a Nigerian environment and assessed their potential for LDPE biodegradation. Methods: Using standard procedures, Bacteria were isolated from polythene samples collected from farmlands and waste dump sites in Nsukka metropolis. Mineral salt medium (MSM) was prepared, with LPDE as sole carbon source, and used for isolation. Optical density (OD600 nm) was used to study bacterial growth on LDPE as sole carbon source as proof of biodegradation. Both organisms demonstrated steady growth on LDPE over time. Results: Pseudomonas aeruginosa and Micrococcus sp. were identified based on morphological and biochemical characteristics. Ability to grow on LDPE as a sole carbon source was studied as evidence of polyethylene biodegradation. Organisms were inoculated into MSM and incubated at 37°C and 50°C for 15 days. Maximum growth was recorded after 15 days of incubation for both organisms. P. aeruginosa and Micrococcus sp. showed steady growth at 37°C as well as 50 ⁰C. Micrococcus sp. recorded highest growth; 0.324 nm and 0.312 nm at 37°C and 50°C respectively, after 15 days. Similarly, P. aeruginosa recorded highest growth of 0.40 nm and 0.258 nm for 37°C and 50°C respectively. LDPE degradation increased with increase in time. Conclusion: This study demonstrates the enormous polyethylene-degrading potentials of P. aeruginosa and Micrococcus sp. isolated from Nsukka, Nigeria.

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Biodiesel Feedstocks

Maroa¹,

Inambao²

2020

Biodiesel, Combustion, Performance and Emissions Characteristics

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Bioremediation with Microalgae

Cited by 5 publications

References 63 publications

Haematococcus Pluvialis Extends Yeast Lifespan and Improves Slc25a46 Gene Knockout‐Associated Mice Phenotypic Defects

Haematococcus Pluvialis Extends Yeast Lifespan and Improves Slc25a46 Gene Knockout‐Associated Mice Phenotypic Defects

Polyethylene Biodegradation Potentials of Pseudomonas aeruginosa and Micrococcus sp. Isolated from Waste Dumps and Farmlands in Nsukka, Enugu State, Nigeria

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