Enhanced production of astaxanthin and co-bioproducts from microalga Haematococcus sp. integrated with valorization of industrial wastewater under two-stage LED light illumination strategy

Cheirsilp, Benjamas; Wantip, Khwanrutai; Chai-issarapap, Nuengruethai; Maneechote, Wageeporn; Pekkoh, Jeeraporn; Duangjan, Kritsana; Ruangrit, Khomsan; Pumas, Chayakorn; Pathom-aree, Wasu; Srinuanpan, Sirasit

doi:10.1016/j.eti.2022.102620

Cited by 18 publications

(6 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By reducing the absorbance of samples at 734 nm, spectrophotometry can quantify the decolorization of an ABTS solution caused by the hydrogen provided by antioxidant components in the extract reacting with ABTS radicals [ 19 ]. This capacity is used to define an antioxidant’s level of antioxidant activity [ 25 ]. According to Figure 2 a,b, the ethanolic extract showed antioxidant potential by scavenging ABTS with an IC 50 value of 3.31 mg/mL (16.33 mg-GAE/g-extract), which is in good agreement with the previous publications reported by Ijaz and Hasnain [ 41 ], Ghareeb et al [ 44 ], Anas et al [ 102 ], and Mali et al [ 103 ].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Naturally Occurring Functional Ingredient from Filamentous Thermophilic Cyanobacterium Leptolyngbya sp. KC45: Phytochemical Characterizations and Their Multiple Bioactivities

et al. 2022

Self Cite

View full text Add to dashboard Cite

Cyanobacteria are rich in phytochemicals, which have beneficial impacts on the prevention of many diseases. This study aimed to comprehensively characterize phytochemicals and evaluate multifunctional bioactivities in the ethanolic extract of the cyanobacterium Leptolyngbya sp. KC45. Results found that the extract mainly contained chlorophylls, carotenoids, phenolics, and flavonoids. Through LC–ESI–QTOF–MS/MS analysis, 38 phenolic compounds with promising bioactivities were discovered, and a higher diversity of flavonoids was found among the phenolic compounds identified. The extract effectively absorbed the harmful UV rays and showed high antioxidant activity on DPPH, ABTS, and PFRAP. The extract yielded high-efficiency inhibitory effects on enzymes (tyrosinase, collagenase, ACE, and α-glucosidase) related to diseases. Interestingly, the extract showed a strong cytotoxic effect on cancer cells (skin A375, lung A549, and colon Caco-2), but had a much smaller effect on normal cells, indicating a satisfactory level of safety for the extract. More importantly, the combination of the DNA ladder assay and the TUNEL assay proved the appearance of DNA fragmentation in cancer cells after a 48 h treatment with the extract, confirming the apoptosis mechanisms. Our findings suggest that cyanobacterium extract could be potentially used as a functional ingredient for various industrial applications in foods, cosmetics, pharmaceuticals, and nutraceuticals.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The DPPH radical scavenging activity was measured in accordance with the methodology outlined by Cheirsilp et al [ 25 ], although with some slight adjustments. In a 96-well plate, 50 μL of DPPH dissolved in methanol at 1.3 mM concentration was combined with 100 μL of the extract solution.…”

Section: Methodsmentioning

confidence: 99%

Naturally Occurring Functional Ingredient from Filamentous Thermophilic Cyanobacterium Leptolyngbya sp. KC45: Phytochemical Characterizations and Their Multiple Bioactivities

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the absence of light, microalgae can also grow in a heterotrophic way, by using organic carbon as a source of carbon and energy (Sivaramakrishnan et al, 2022). With this capability, microalgae are suitable for treating wastewater, especially secondary waste (Cheirsilp et al, 2022). Its adaptability causes Chlorophyta called the main producer in an aquatic ecosystem.…”

Section: Diversity Uniformity and Dominance Indexmentioning

confidence: 99%

“…When researching the average water temperature in the Jangkok River ranges from 26 O C-27 o C, while the ideal temperature for the growth of organisms including microalgae is 20-30 O C. The high and low temperature of water greatly affects the life of aquatic organism (Maresi et al, 2015). Related to the effect of light on the activity of microalgae, it was reported that the excessive use of LED light could harm the microalgae cells, by disrupting the photosystem and bleaching the pigments (Cheirsilp et al, 2022).…”

Section: Diversity Uniformity and Dominance Indexmentioning

confidence: 99%

Community Structure of Freshwater Microalgae in Jangkok River, Lombok Indonesia

Purwati¹,

Jayanti²,

Jannah³

2022

jppipa, pendidikan ipa, fisika, biologi, kimia

View full text Add to dashboard Cite

The microalgae community structure in an aquatic ecosystem is strongly influenced by environmental factors. One of the rivers in Indonesia, located inhe island of Lombok, West Nusa Tenggara, is the Jangkok River. The Jangkok River is widely used by residents for activities, including industry, cultivation, waste disposal, and others. This study aimed to determine the structure of microalgae community in Jangkok River. This research was carried out with an exploration descriptive method by quantitative and qualitative approaches. Data were analyzed quantitatively by calculating the Shannon-Wiener diversity index (H’), Uniformity index (E) and Dominance index (d). The results showed that the diversity of microalgae was categorized as moderate (H' = 2.66), uniformity index (E = 0.66), and the dominance index indicate that there were no dominant species with a value (D = 0.13).

show abstract

“…Environment and healthiness are the most important aspect on human living. The increasing of awareness of environment and healthiness will be an added value on industrial waste [1]. Waste from agro-industrial corn, like corn cob, if it weren't well treated it will be polluting the environment.…”

Section: Introductionmentioning

confidence: 99%

Corn cob usage as activated carbon using KOH as activator

Agustina,

Yulianto,

Kamil

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The value of agroindustry waste like corn cob can be added as raw material for produced activated carbon. Activated carbon can be used as adsorbent in food, pharmacy, cosmetic industries, and waste water treatment. This research was conducted by using KOH as activator in the activation process for produced of activated carbon from corn cob. The methods include several steps, first step was particle size reduction. Second step was carbonization process in 500° C for an hour. Third step was activation process using solid KOH and liquid KOH, then heated at 900° C. Then, it will be washed until neutral and dried at 105° C. The activated carbon was observed for iodine adsorption, surface area, carbon content and morphology. The result for activation process using solid KOH: optimum iodine adsorption, optimum surface area, and optimum carbon content were 1233.87 mg/g, 2076.141 m2/g, and 93.59 %, respectively. Activation process using liquid KOH: optimum iodine adsorption, optimum surface area, and optimum carbon content were 595.16 mg/g, 716.271 m2/g, and 95.24 %, respectively. The morphology of activated carbon using solid KOH was cleaner and more open (porous). The Activated carbon can be applied for skin care product, like gel peel off mask.

show abstract

Enhanced production of astaxanthin and co-bioproducts from microalga Haematococcus sp. integrated with valorization of industrial wastewater under two-stage LED light illumination strategy

Cited by 18 publications

References 72 publications

Naturally Occurring Functional Ingredient from Filamentous Thermophilic Cyanobacterium Leptolyngbya sp. KC45: Phytochemical Characterizations and Their Multiple Bioactivities

Naturally Occurring Functional Ingredient from Filamentous Thermophilic Cyanobacterium Leptolyngbya sp. KC45: Phytochemical Characterizations and Their Multiple Bioactivities

Community Structure of Freshwater Microalgae in Jangkok River, Lombok Indonesia

Corn cob usage as activated carbon using KOH as activator

Contact Info

Product

Resources

About