Optimization of spray drying process for recovery of onion–stevia leaf hot water extract powder using response surface methodology

Yang, Hae‐Il; Ameer, Kashif; Chung, Young Bae; Min, Sung‐Gi; Eun, Jong‐Bang

doi:10.1002/fsn3.3207

Cited by 14 publications

(9 citation statements)

References 46 publications

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“…The entrapment of higher moisture levels in WPC-EDP due to the dented-surface phenomenon occurred due to the hydrophilic nature of the whey protein concentrate as compared to MD [ 38 ]. A similar study performed for the spray drying of Sohiong fruit powder which had moisture content ranging from 3.15–4.51% [ 39 ]. The study was also conducted for the spray drying of tomato powder with different wall materials.…”

Section: Resultsmentioning

confidence: 99%

Effect of Carrier Agents on Quality Parameters of Spray-Dried Encapsulated Diosgenin Powder and the Optimization of Process Parameters

Arya

Kumar

2023

Foods

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Fenugreek seeds are a rich source of bioactive compounds, such as diosgenin, which is one of the most crucial steroidal sapogenins emerging in the field with its spectacular health benefits. Plant-based diosgenin is bitter in taste and has remarkably low consumption levels, making it unable to fulfil the role of improving health benefits. Diosgenin is spray dried to mask bitterness and astringent flavors with two different wall materials, such as maltodextrin (MD) and whey protein concentrate (WPC), separately. The spray-drying condition of the selected optimization process was inlet air temperature (IAT 150–170 °C), feed flow rate (FFR 300–500 mL/h), and carrier agent concentration (CAC 10–20%). The optimization of the process variable was conducted for producing optimized encapsulated diosgenin powder (EDP) with both MD and WPC. The selected parameters, such as yield, encapsulation efficiency, moisture content, antioxidant activity, hygroscopicity, and solubility, are investigated in this current work. Based on the experimental results, the significant R2 values depict the model fitting to the responses. EDP revealed an optimization condition at 170 °C IAT, 500 mL/h FFR, and 20% CAC for MD and WPC. The highest responses were observed with WPC-EDP, such as yield at 82.25%, encapsulation efficiency at 88.60%, antioxidant activity at 53.95%, and hygroscopicity at 12.64%. MD-EDP revealed higher solubility at 96.64% and moisture content at 2.58%. EDP was studied using micrographs and diffractograms for the optimized samples, which revealed a smooth and dented surface with an amorphous nature for MD-EDP and WPC-EDP, respectively. EDP exhibited acceptable powder properties with regard to fulfilling the set purpose. EDP can be a better potential ingredient in different food matrices to act as a delivery vehicle for various health aliments.

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Section: Resultsmentioning

confidence: 99%

Effect of Carrier Agents on Quality Parameters of Spray-Dried Encapsulated Diosgenin Powder and the Optimization of Process Parameters

Arya

Kumar

2023

Foods

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“…Caused of these applications, different research has been performed to clarify several aspects of this process [11][12][13][14][15][16][17][18][19][20][21]. Caused of the considerable energy consumption by the spray dryers [22][23][24], decreasing their energy usage by different approaches like heat recovery has been the subject of several works [25][26][27]. Golman and Julklang [28] investigated various options that can be utilized for heat recovery in spray dryers.…”

Section: Introductionmentioning

confidence: 99%

Employing the H-type finned heat exchangers with the circular tube for energy-saving purposes of the spray dryers

Moghaddam,

Javaherdeh

2024

Preprint

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In this paper, two heat exchangers along with 50% recirculation of exhaust air are used to recover the exhaust heat from the spray dryers and use them to preheat the atomizing and drying air. The H-type finned heat exchangers with circular holes are used here. All of the results are extracted by two different approaches, including standard k-ε and SST k-ω models. First, the influence of different parameters on the performance of the first and second heat exchangers is evaluated. It is shown that the Nusselt number increases by increasing the Reynolds number. While the friction factor of both heat exchangers decreases. Then, the influence of adding heat exchangers on the energy consumption of the factory and spray dryer is estimated. It is shown that the suggested system can be effectively used to 23.52% decrease the energy consumption of the spray dryer.

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“…The spray dryers are considered as energy intensive operations that consume a large portion of the applied energy to the industrial unit [22][23][24]. Hence, proposing an approach to reduce the energy consumption or recover the exhaust heat from the spray dryer has been the subject of some research [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

On the heat recovery of the spray dryers by using the tube-finned heat exchanger with elliptical holes

Moghaddam,

Javaherdeh

2024

Preprint

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In this paper, the applicability of the heat exchangers for the heat recovery and energy saving purposes in spray dryers by utilizing Computational Fluid Dynamics (CFD) is investigated. For this purpose, two different tube-finned heat exchangers with the elliptical holes are added to the equipment. The first one gives the heat of the exhaust air and the second one translates the recovered heat from the exhaust air to the atomizing air. Initially, the effect of different parameters on the heat exchangers are studied. Then, numerically the effect of adding heat exchanger on the factory performance is evaluated. It is observed that by adding the mentioned heat exchangers, the energy consumption and energy price of the factory and the spray dryer decreases. Hence, the suggested equipment can be used for energy saving in the spray dryers.

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Optimization of spray drying process for recovery of onion–stevia leaf hot water extract powder using response surface methodology

Cited by 14 publications

References 46 publications

Effect of Carrier Agents on Quality Parameters of Spray-Dried Encapsulated Diosgenin Powder and the Optimization of Process Parameters

Effect of Carrier Agents on Quality Parameters of Spray-Dried Encapsulated Diosgenin Powder and the Optimization of Process Parameters

Employing the H-type finned heat exchangers with the circular tube for energy-saving purposes of the spray dryers

On the heat recovery of the spray dryers by using the tube-finned heat exchanger with elliptical holes

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