scholarly journals Optimising the Spray Drying of Avocado Wastewater and Use of the Powder as a Food Preservative for Preventing Lipid Peroxidation

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1187 ◽  
Author(s):  
Rahul Permal ◽  
Wee Leong Chang ◽  
Tony Chen ◽  
Brent Seale ◽  
Nazimah Hamid ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Spray Drying ◽  
Flow Rate ◽  
Butylated Hydroxytoluene ◽  
Whey Protein Concentrate ◽  
Feed Flow Rate ◽  
Food Preservative ◽  
Pork Fat ◽  
Tbars Assay ◽  
Cold Pressed

Avocado wastewater (AWW) is the largest by-product of cold pressed avocado oil. The aim of this study was to valorise AWW by converting it into spray dried powder for use as a lipid peroxidation inhibiting food preservative. To increase the powder yield of AWW, addition of carriers and spray drying parameters (temperature and feed flow rate) were optimised. The highest AWW powder yield was 49%, and was obtained using 5% whey protein concentrate (WPC), with a feed flow rate of 5.8 g/min and an inlet drying temperature of 160 °C. The liquid chromatography mass spectrophotometry (LC-MS) analysis showed that AWW encapsulated with WPC had the highest retention of α-tocopherol (181.6 mg/kg powder). AWW with 5% WPC was tested as a preservative in pork fat cooked at 180 °C for 15 min. Thiobarbaturic acid reactive substances (TBARS) assay showed that the effectiveness of AWW powder was comparable to commercial additives such as butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), and sodium erythorbate (E316).

Optimization for Powder Yield of Spray-Dried Garlic Extract Powder Using Box-Behnken Experimental Design

2020 ◽  
Vol 859 ◽  
pp. 301-306
Author(s):  
Nattakanwadee Khumpirapang ◽  
Supreeya Srituptim ◽  
Worawut Kriangkrai
Keyword(s):  
Experimental Design ◽  
Spray Drying ◽  
Flow Rate ◽  
Interactive Effect ◽  
Garlic Extract ◽  
Process Conditions ◽  
Inlet Temperature ◽  
Feed Flow Rate ◽  
Air Inlet ◽  
Liquid Feed

Garlic exerts its pharmacological activities; antihyperglycemic, antihyperlipidemia, antihypercholesterolemic, and antihypertensive activity. Therefore, the aim of this study was to determine and optimize the influence of the individual and interactive effect of process conditions variables on the yield of garlic extract powders by three factors and three level-Box-Behnken design under response surface methodology. Spray drying processes the transformation of a garlic juice extract into a dried powder, where usually maltodextrin (MD) as a drying agent is used. According to experimental design, the mixing of garlic juice extract (85 – 95 %w/w) and MD (5 – 15 %w/w) were dried at an air inlet temperature 110°C - 150°C and liquid feed flow rate 5 – 35 rpm. The optimum spray-drying process conditions which maximized the yield of garlic extract powder (31%w/w) were found as follows: air inlet temperature of 150°C, the liquid feed flow rate of 16 rpm, and 5 %w/w MD. The experimental values slightly closed to the corresponding predicted values. Hence, the developed model was adequate and possible to use.

The optimization of spray-drying process for the development of apricot powder using response surface methodology

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Omar Bashir ◽  
Syed Zameer Hussain ◽  
Tawheed Amin ◽  
Nusrat Jan ◽  
Gousia Gani ◽  
...  
Keyword(s):  
Response Surface ◽  
Spray Drying ◽  
Air Temperature ◽  
Flow Rate ◽  
Gum Arabic ◽  
Feed Flow Rate ◽  
Drying Process ◽  
Content Type ◽  
Independent Variables ◽  
Pharmacological Significance

PurposeApricots are not only nutritionally-rich but also possess pharmacological significance owing to their high antioxidant activity, and they are rich in vitamins, fibers, bioactive phytochemicals and minerals. Because of its immense organoleptic characteristics, apricot juice (AJ) is well accepted; however, it has a limited shelf-life, thereby demanding it to be converted into other shelf-stable form. One of the approaches is converting this juice into dehydrated powder. Amongst the various dehydration techniques available, spray drying is usually preferred; however, it involves the use of several independent variables, which need to be optimized, thus prompting to optimize the process to obtain spray dried apricot powder (SDAP) with improved quality.Design/methodology/approachThe spray-drying process of apricot juice was done using the response surface approach. The process variables included the inlet air temperature of 135–220°C, gum arabic concentration of 4–25%, feed flow rate of 124–730 mL/h, feed total soluble solids (TSS) of 10-30°Brix and atomization speed of 11,400–28,000 rpm. The dependent responses were powder yield, hygroscopicity, solubility, moisture content, carotenoids (CT), ascorbic acid (AA), radical scavenging activity (RSA), lightness, wettability, bulk density, particle density and porosity.FindingsAmongst all independent variables, inlet air temperature had most predominant impact on all the investigated responses. The optimum processing conditions for development of apricot powder with optimum quality were 190°C inlet air temperature, 18.99% gum arabic, 300.05 mL/h feed flow rate, 24°Brix feed TSS and 17433.41 rpm atomization speed. The experimental values were found to be in agreement with the predicted values, indicating the suitability of models in predicting optimizing responses of apricot powder. Flowability as Carr's index (CI) (22.36 ± 1.01%) suggests fair flow of powder. Glass transition temperature of powder was 57.85 ± 2.03°C, which is much higher than that of ambient, suggesting its better shelf stability.Originality/valueTo the best of author's knowledge, very limited or very few studies have been carried out on the spray-drying process for the manufacture of SDAP. The results of this investigation will open up new horizons in the field of food industry in the Union Territory of Jammu and Kashmir, India or elsewhere in the apricot-growing areas of India.

scholarly journals Spray drying of the mixtures of mono-, di-, and oligosaccharides

2013 ◽  
Vol 6 (2) ◽  
pp. 177-181 ◽  
Author(s):  
Katarzyna Wrzosek ◽  
Juraj Moravčík ◽  
Monika Antošová ◽  
Viera Illeová ◽  
Milan Polakovič
Keyword(s):  
Spray Drying ◽  
Flow Rate ◽  
Inlet Temperature ◽  
Enzymatic Conversion ◽  
Feed Flow Rate ◽  
Optimal Conditions ◽  
Air Flow Rate ◽  
High Glass Transition Temperature ◽  
Rich Mixture ◽  
Solids Concentration

Abstract Optimal conditions of spray drying of a fructooligosaccharide-rich mixture prepared by enzymatic conversion of sucrose were investigated. It was found that efficient drying of the mixture containing about 40 % of monosaccharides and sucrose required addition of a compound with a high glass transition temperature. The addition of maltodextrin helped to achieve satisfactory solids yield and moisture. Optimized process parameters were the feed flow rate and solids concentration, drying air flow rate and inlet temperature.

scholarly journals Effect of spray drying conditions on antioxidants activity, flavonoids and total phenolic compounds of stevia rebaudiana

2018 ◽  
Author(s):  
Juan Rodríguez-Ramírez ◽  
Irene Chaparro-Hernández ◽  
Lilia L. Méndez-Lagunas ◽  
Luis Gerardo Barriada-Bernal
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Spray Drying ◽  
Air Temperature ◽  
Flow Rate ◽  
Total Flavonoid ◽  
Total Phenolic ◽  
Feed Flow Rate ◽  
Total Flavonoid Content ◽  
Flavonoid Content

In this work the spray drying of the fresh stevia leaves aqueous extract without encapsulating agents was carried out. The effect of the inlet air temperature (160-200 ºC) and the feed flow rate (2-3 kg/h) on the total phenolic content, the total flavonoid content and the antioxidant capacity were evaluated using Folin-Ciocalteau, aluminum chloride and DPPH methods respectively. The inlet air temperature had a significant effect on all parameters evaluated that showed a decrease when increasing the inlet air temperature, the feed flow rate had a significant effect on total flavonoids content and the antioxidant capacity, by increasing the feed flow rate the inhibition of the DPPH radical decreased and the total flavonoid content increased. The treatment at 160 ºC and 3 kg/h retained highest total flavonoid content and the antioxidant capacity. Keywords: Phenolic compounds, stevia, spray drying, antioxidant capacity

scholarly journals OPTIMIZATION OF SPRAY DRYING CONDITION FROM TRAMETES VERSICOLOR MUSHROOM EXTRACT

2020 ◽  
Vol 39 (03) ◽  
Author(s):  
NGUYEN NGOC TUAN ◽  
NGUYEN THI NGAN ◽  
NGUYEN NGOC THUAN ◽  
NGUYEN TRAN NGOC MAI ◽  
NGUYEN DUC VUONG ◽  
...  
Keyword(s):  
Spray Drying ◽  
Flow Rate ◽  
Trametes Versicolor ◽  
Total Solid ◽  
Total Phenolic ◽  
Feed Flow Rate ◽  
Optimal Conditions ◽  
Drying Temperature ◽  
Surface Method ◽  
Experimental Values

In this study, the optimal conditions for the spray drying from Trametes versicolor (V.C.) extracts were determined using response surface method/technique (RSM). One kilogram of material was extracted with 30L ethanol 65% of 70oC for 7 hours. Solids were filtered off, extract was concentrated to obtain solution containing about 20% total solid using a vacuum evaporator. Study on the effects of three independent variables, namely maltodextrin ratio (% w/v), feed flow rate (ml/min) and inlet drying temperature (oC) on the responses; total phenolic content (TPC) and moisture content (MC). The optimal conditions for spray drying process from T. versicolor extracts were found to be maltodextrin ratio of 5%w/v, inlet drying temperature of 160oC and feed flow rate of 26.05ml/min. The experimental values of TPC and MC were 35.76±0.04mg GAE/g, 4.43±0.02%

Microencapsulation of Lactobacillus rhamnosus ATCC 7469 by spray drying using maltodextrin, whey protein concentrate and trehalose

2021 ◽  
pp. 108201322110206
Author(s):  
Jacqueline Agudelo-Chaparro ◽  
Héctor J Ciro-Velásquez ◽  
José U Sepúlveda-Valencia ◽  
Ezequiel José Pérez-Monterroza
Keyword(s):  
Spray Drying ◽  
Water Activity ◽  
Air Temperature ◽  
Flow Rate ◽  
Lactobacillus Rhamnosus ◽  
Whey Protein Concentrate ◽  
Protein Concentrate ◽  
Air Flow Rate ◽  
Feed Pump ◽  
Drying Conditions

This study aimed to microencapsulate Lactobacillus rhamnosus ( L. rhamnosus) ATCC 7469 with whey protein concentrate (WPC), maltodextrin and trehalose by spray drying and to assess the impact of microencapsulation on cell viability and the properties of the dried powders. Spray-drying conditions, including inlet air temperature, air flow rate and feed pump, were fixed as independent variables, while probiotic survival, moisture content, water activity and effective yield were established as dependent variables. The survival of encapsulated L. rhamnosus by spray drying was optimized with response surface methodology, and the stability of the powder was assessed. The optimum spray-drying conditions were an inlet air temperature, air flow rate and feed pump rate of 169 °C, 33 m3·h−1 and 16 mL·min−1, respectively, survival of 70%, air aspiration of 84% and outlet air temperature of 52 °C, achieving an overall desirability of 0.96. The physicochemical and structural characteristics of the produced powder were acceptable for application with regard to residual water content, hygroscopicity, water activity, and particle size. The results indicated that a protein-trehalose-maltodextrin mixture is a good wall material to encapsulate L. rhamnosus, showing important thermal protection during the drying process and increasing survival. However, a decrease in this capacity is observed at an air outlet temperature of approximately 101 °C. The possible effects of the wall materials and the drying conditions on survival are also discussed.

scholarly journals Instant tea from Condonopsis javanica L. root extract via spray drying

2020 ◽  
Vol 8 (2) ◽  
pp. 385-391
Author(s):  
Nguyen Phu Thuong Nhan ◽  
Nguyen Duong Vu ◽  
Le Van Thanh ◽  
Than Thi Minh Phuong ◽  
Long Giang Bach ◽  
...  
Keyword(s):  
Spray Drying ◽  
Flow Rate ◽  
Radical Scavenging ◽  
Particle Morphology ◽  
Root Extract ◽  
Additive Concentration ◽  
Feed Flow Rate ◽  
New Production ◽  
Drying Temperature ◽  
Saponin Content

Introduction. Codonopsis javanica L. root is a gingsen-like medicinal material with valuable bioactive compounds and alkaloids in its composition. However, the diversification of commercial products from Codonopsis javanica root extract is limited and poorly represented on the market. This study presents a new production process of an instant tea product from Codonopsis javanica root extract, which involved spray drying with maltodextrin as a drying additive. Study objects and methods. The research featured different process parameters including a drying additive concentration, a drying temperature, and a feed flow rate. Moisture content and drying yield were selected as the main outcomes. Results and discussion. In general, the improved drying yield was associated with an increased drying additive concentration, a lower drying temperature, and a higher feed flow rate. The best drying yield (78.35%) was obtained at the drying additive concentration of 30% (w/w), the drying temperature of 140°C, and the feed flow rate of 300 mL/h. The total saponin content in the product was 0.29% (w/w), and the ABTS free radical scavenging ability reached 59.48 μgAA/g. The obtained powder was spherical and exhibited fairly uniform particle morphology with shriveled and concave outer surface. Conclusion. The research results justified the use of Codonopsis javanica as an ingredient in beverage industry and suggested maltodextrin as an appropriate substrate for spray-drying natural extracts.

Optimisation of spray drying process in microencapsulated cream powder production

2020 ◽  
Vol 87 (3) ◽  
pp. 375-378
Author(s):  
Ahsen Burcin Himmetagaoglu ◽  
Serap Berktas ◽  
Mustafa Cam ◽  
Zafer Erbay
Keyword(s):  
Bulk Density ◽  
Spray Drying ◽  
Flow Rate ◽  
Fat Content ◽  
Wall Material ◽  
Feed Flow Rate ◽  
Drying Process ◽  
Optimum Conditions ◽  
Drying Temperature ◽  
Content Ratio

AbstractIn this Research Communication we describe the optimisation of spray drying conditions in the production of microencapsulated cream powder. Oil-in-water emulsions were prepared using maltodextrin (18 DE) and sodium caseinate as wall materials (with the total wall material per total solid content ratio of 30%) and then converted into powder by spray drying. Response surface methodology was used to optimise the factors of spray drying system i.e. inlet drying temperature, feed flow rate, and aspiration rate, where the levels were in the range of 150–190°C, 9–30 ml/min, and 50–100%, respectively. Our objective was to perform spray drying with the highest drying yield and to obtain a microencapsulated cream powder with the highest bulk density, the shortest wetting time, and the lowest surface fat content. The calculated and validated optimum conditions for the spray drying process were found to be 162.8°C for inlet drying temperature, 11.51 ml/min for feed flow rate, and 72.8% for aspiration rate. At these optimum conditions, drying yield, bulk density, wettability, and surface fat content values were 36.37%, 269.9 kg/m3, 115.2 s and 26.2%, respectively.

Effects Of Variables On The Production Of Red-Fleshed Pitaya Powder Using Response Surface Methodology

2011 ◽  
pp. 15-29
Author(s):  
Mohd Azizi Che Yunus ◽  
Ching Yaw Lee ◽  
Zuhaili Idham
Keyword(s):  
Response Surface Methodology ◽  
Moisture Content ◽  
Bulk Density ◽  
Response Surface ◽  
Spray Drying ◽  
Air Temperature ◽  
Flow Rate ◽  
Feed Flow Rate ◽  
Drying Conditions ◽  
Central Composite

Teknik reka bentuk komposit pusat dalam kaedah gerak balas permukaan (RSM), telah dipilih untuk memeriksa pengaruh parameter-parameter pengeringan sembur terhadap kandungan lembapan dan ketumpatan pukal serbuk buah naga. Pemboleh ubah-pemboleh ubah tak bersandar dengan julat seperti yang disebutkan telah diuji kaji: suhu masukan (156-224°C), kadar aliran suapan (16.6-33.4 ml/min) dan kepekatan maltodextrin (31.6-48.4%). Keputusan menunjukkan bahawa data eksperimen dapat diwakili oleh bentuk polinomial tertib kedua. Bagaimanapun, hanya istilah linear mempunyai pengaruh mutlak terhadap keadaan serbuk. Parameter-parameter terbaik untuk mencapai nilai kandungan lembapan terendah adalah suhu masukan 224°C, kadar aliran suapan 22.9 ml/min dan kepekatan maltodextrin 40%, dengan jangkaan 3.88% kandungan lembapan. Nilai ketumpatan pukal yang maksimum iaitu 0.45 g/ml dicapai pada suhu masukan 156°C, kadar aliran suapan 16.6 ml/min dan kepekatan maltodextrin 48.4%. Kata kunci: Kaedah gerak balas permukaan; sembur kering; buah naga Central Composite Design technique from Response Surface Methodology (RSM) was used to investigate the effects of spray drying conditions on red-fleshed pitaya powder moisture content and bulk density. The spray drying independent variables and ranges are inlet air temperature (156-224°C), feed flow rate (16.6-33.4 ml/min) and maltodextrin concentration (31.6-48.4 %). Results showed that the data were adequately fitted to second order polynomial model. However, only linear terms proved to be significant for powder attributes. The best spray drying conditions within the experimental ranges for minimum powder moisture content of 3.88% would be inlet air temperature, feed flow rate and maltodextrin concentration of 224°C, 22.9 ml/min and 40% respectively. The maximum powder bulk density of 0.45 g/ml was obtained at inlet air temperature of 156°C, 16.6 ml/min feed flow rate and 48.4% maltodextrin concentration. Key words: Response surface methodology; spray-drying; red-fleshed pitaya

Experimental and Modelling of Aqueous Radioactive Waste Treatment by Ultrafiltration

2018 ◽  
Vol 69 (5) ◽  
pp. 1149-1151
Author(s):  
Laura Ruxandra Zicman ◽  
Elena Neacsu ◽  
Felicia Nicoleta Dragolici ◽  
Catalin Ciobanu ◽  
Gheorghe Dogaru ◽  
...  
Keyword(s):  
Flow Rate ◽  
Suspended Solids ◽  
Waste Treatment ◽  
Operating Pressure ◽  
Feed Flow Rate ◽  
Permeate Flux ◽  
Independent Variables ◽  
Opposite Trend ◽  
Process Factors ◽  
Volumetric Flux

Ultrafiltration of untreated and pretreated aqueous radioactive wastes was conducted using a spiral-wound polysulphonamide membrane. The influence of process factors on its performances was experimental studied and predicted. Permeate volumetric flux and permeate total suspended solids (TSS) were measured at different values of feed flow rate (7 and 10 m3/h), operating pressure (0.1-0.4 MPa), and feed TSS (15 and 60 mg/L). Permeate flux (42-200 L/(m2�h)) increased with feed flow rate and operating pressure as well as it decreased with an increase in feed TSS, whereas permeate TSS (0.1-33.2 mg/L) exhibited an opposite trend. A 23 factorial plan was used to establish correlations between dependent and independent variables of ultrafiltration process.

Sign in / Sign up

Export Citation Format

Share Document