Optimization of spray drying for
            <i>Chlorella vulgaris</i>
            by using
            <scp>RSM</scp>
            methodology and maltodextrin

Konar, Nevzat; Durmaz, Yaşar; Polat, Derya Genç; Mert, Behiç

doi:10.1111/jfpp.16594

Cited by 15 publications

(12 citation statements)

References 49 publications

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“…The main parameters important for the spray drying process were as inlet air temperature (170.0-190.0°C) and outlet air temperature (95.0°C) and feed rate (7.00-9.00 mL min − 1 ). The residence time of the drying air within the spray chamber was about 1.5 seconds (Konar et al 2022).…”

Section: Encapsulation By Using a Spray Dryermentioning

confidence: 99%

“…The L* (blackness-whiteness), a* (± red-green) and b* (± yellow-blue) values of the samples were measured and these values were used to determine the chroma (C*) and hue angle (h°) values by using Eqs. ( 2) and (3) (Konar et al 2022). Analyzes were carried out in ve replications.…”

Section: Color Analysismentioning

confidence: 99%

“…For example, the properties of the cell wall can affect the stability of various bioactive compounds during dehydration. Drying and encapsulation with a spray-dryer is advantageous due to its economic and widespread use (Konar et al 2022).…”

mentioning

confidence: 99%

“…By this process, it may be possible to produce a natural material that can be used in various applications. We can also obtain multi-functional products as a result of whole microalgae biomass drying and/or encapsulation (Bernaerts et al 2018;Durmaz et al 2020;Konar et al 2022). The need for additional applications that arise during the extraction of different components is eliminated and advantages are provided for loss and stability problems that may occur during these processes.…”

mentioning

confidence: 99%

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Spray-Drying Optimization for Dunaliella salina and Porphyridium cruentum Biomass

Durmaz

Konar

Gürbüz

et al. 2023

Preprint

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The compositions and cultivation advantages of microalgae increase their importance as sustainable food and feed sources. However, drying and encapsulation processes are needed for widespread use. In this study, Dunaliella salina and Porphyridium cruentum biomass were encapsulated by using spray-dryer (SD) and combined D-optimal methods. The independent variables were SD inlet temperature (170-190°C), maltodextrin (25-75%, w/w, in dm) and microalgae biomass (25-75%, w/w, in dm). Prior to spray drying, P. cruentum and D. salina were cultivated in a pilot scale tubular photobioreactor (PBR) and than harvested using a conical plate centrifuge. Significant models were determined for the effects of independent variables on total carotenoids, chlorophyll-a, crude protein, moisture content and encapsulation yield, water activity, average particle size, wettability, hygroscopity, L* and C* properties for both microalgae species (P<0.05). It was determined that biochemical and cell properties and composition need to developed unique spray-drying process for each alga. Also, due to the low moisture content (>6.27 g 100 g-1) and water activity (>0.277), the average particle sizes (>143.7 µm) of the samples with high stability were advantageous for various food applications and storage. However, due to the low encapsulation yield (11.1-33.1%), we recommend encapsulation and drying of P. cruentum biomass with alternative methods to spray dryer. The extracellular, as well as the cell wall and storage polysaccharides released into the culture medium of these microalgae are possible reasons for the low encapsulation yield.

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Section: Encapsulation By Using a Spray Dryermentioning

confidence: 99%

Section: Color Analysismentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Spray-Drying Optimization for Dunaliella salina and Porphyridium cruentum Biomass

Durmaz

Konar

Gürbüz

et al. 2023

Preprint

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“…Chlorella vulgaris is a well-known microalgal strain and has been used in research for centuries (Xie et al ., 2022). Strains of the species and their extracts are used as edible healthy foods due to their high chlorophyll content (Konar et al ., 2022). Additionally, with its capacity for accumulating high amounts of lipids, C. vulgaris has proved to be an appropriate candidate for biodiesel production (Xie et al ., 2022).…”

Section: Introductionmentioning

confidence: 99%

Long-term storage of microalgae: determination of optimum cryopreservation conditions

et al. 2022

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Maintenance of eukaryotic microalgae strains for the long term is generally carried out using serial subculture techniques which require labour, time and cost. Cryopreservation techniques provide long-term storage of up to years for numerous microorganism strains and cell cultures. Ssu930ijn vbvbhnn8;l,n is related to a successfully designed mass and heat transfer balance throughout the cell. In this study, optimization of the cryopreservation process was carried out for two commercially used microalgal strains. The parameters to be optimized were DMSO percentage (0–25%), incubation time (1–15 min) and cryopreservation term (7–180 days) using a central composite design (CCD). Long-term storage up to 123.17 and 111.44 days corresponding to high cell viabilities was achieved for Chlorella vulgaris and Neochloris texensis, respectively. Generated models were found to be in good agreement with experimental results. The study also revealed holistic results for storage of microalgal strains in a stable state for industrial applications.

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Preservation of active components in olive leaf extract by spray drying method in biodegradable polymers: Optimization, in vitro gastrointestinal digestion and application

Toprakçı

COŞGUN

Balci-Torun

et al. 2023

Phytochemical Analysis

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IntroductionEncapsulation of the bioactive ingredients in biodegradable and edible polymers is an alternative novel application method to keep these kind of natural products stable.ObjectiveThe purpose is to optimize the encapsulation system of olive leaf extract by spray drying method, and to apply the products into a model food.MethodsOlive leaf extract was encapsulated in arabic gum/maltodextrin blend by spray drying method. Combined design approach under I‐optimal design type was used to optimize the system. Characterisation studies under moisture content, water activity, solubility, bulk density, tapped density, Carr index, particle size distribution, powder morphology and glass transition temperature were applied to the microparticles obtained under optimum conditions. The bioavailability of the encapsulated active material was tested by in vitro gastrointestinal digestion. Furthermore, microparticles produced under optimum conditions were also evaluated for a potential functional food application.ResultsThe optimum conditions were achieved by arabic gum/maltodextrin (3.7:6.3) with 10% (w/v) in the mixture of wall material and active material under 165.5°C to achieve maximum encapsulation efficiency (86.92%), encapsulation yield (71.32%) and antioxidant activity (5.74 mg Trolox equivalent antioxidant capacity/g dry microparticle).ConclusionsOlive leaf extract encapsulated in arabic gum/maltodextrin may be a good alternative additive to prevent the lipid oxidation in fat‐containing food products as well as improvement of the product quality by functional properties.

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Optimization of spray drying for Chlorella vulgaris by using RSM methodology and maltodextrin

Cited by 15 publications

References 49 publications

Spray-Drying Optimization for Dunaliella salina and Porphyridium cruentum Biomass

Spray-Drying Optimization for Dunaliella salina and Porphyridium cruentum Biomass

Long-term storage of microalgae: determination of optimum cryopreservation conditions

Preservation of active components in olive leaf extract by spray drying method in biodegradable polymers: Optimization, in vitro gastrointestinal digestion and application

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