scholarly journals Effect of Methyl–β–Cyclodextrin and Trehalose on the Freeze–Drying and Spray–Drying of Sericin for Cosmetic Purposes

2021 ◽  
Vol 14 (3) ◽  
pp. 262
Author(s):  
Lorella Giovannelli ◽  
Andrea Milanesi ◽  
Elena Ugazio ◽  
Letizia Fracchia ◽  
Lorena Segale
Keyword(s):  
Spray Drying ◽  
Textile Industry ◽  
Freeze Drying ◽  
Raw Materials ◽  
Chemical Properties ◽  
Biological Properties ◽  
Drying Process ◽  
Percentage Yield ◽  
Bombyx Mori Silk ◽  
Degumming Process

Sericin is a protein extracted from Bombyx mori silk cocoons. Over the last decade, this wastewater product of the textile industry has shown many interesting biological properties. This protein is widely used in the cosmetic and biomedical fields. In this study, sericin has been obtained via a High–Temperature High–Pressure degumming process, and was dried using the freeze–drying (fd) and spray–drying (sd) techniques. Proteins tend to collapse during drying, hence, sericin has been dried in the presence of two selected carrier agents: methyl–β–cyclodextrin and trehalose. The obtained powders have been analyzed using thermal investigation, microscopy (optical, SEM), and granulometric and spectroscopic analyses. Moreover, the percentage yield of the spray–drying process has been calculated. Both the agents were able to significantly improve the drying process, without altering the physico–chemical properties of the protein. In particular, the co–spray–drying of sericin with methyl–β–cyclodextrin and trehalose gave good process yields and furnished a powder with low moisture content and handling properties that are better than those of the other studied dried products. These characteristics seem to be appropriate and fruitful for the manufacturing of cosmetic raw materials.

scholarly journals Blackberry pulp microencapsulation with arrowroot starch and gum arabic mixture by spray drying and freeze drying

2018 ◽  
Author(s):  
Rafael Augustus De Oliveira ◽  
Gislaine Ferreira Nogueira ◽  
Farayde Matta Fakhouri
Keyword(s):  
Spray Drying ◽  
Freeze Drying ◽  
Average Particle Size ◽  
Research Work ◽  
Chemical Properties ◽  
Gum Arabic ◽  
Antioxidant Property ◽  
Average Particle ◽  
Anthocyanin Content ◽  
Drying Process

The objective of this research work was to obtain blackberry pulp powder (BL, without encapsulating agent) and microencapsulated blackberry pulp (ML, with encapsulating agent :mixture of starch arrowroot and gum arabic (1:1)) obtained by freeze drying and spray drying and evaluate their physico-chemical properties. The yield of blackberry freeze drying process was higher than the value found for spray drying process. The presence of encapsulating agent and drying method used for producing the powders influenced the average particle size, diameter, hygroscopicity, solubility, wettability and anthocyanin content of the powders. Keywords: process yield; average size; hygroscopicity; solubility; anthocyanin; antioxidant property 

Effects of Preparation of Cement Raw Meal with Carbide Slag on the Environment and Equipments

2014 ◽  
Vol 787 ◽  
pp. 123-127 ◽  
Author(s):  
Ya Li Wang ◽  
Su Ping Cui ◽  
Hui Wang ◽  
Shi Jie Dong ◽  
Yan Yao
Keyword(s):  
Heavy Metal Ions ◽  
Raw Materials ◽  
Chemical Properties ◽  
Exhaust Gas ◽  
Physical And Chemical Properties ◽  
Drying Process ◽  
Calcination Process ◽  
Carbide Slag ◽  
Physical And Chemical ◽  
And Chemical Properties

Based on the physical and chemical properties of carbide slag, the contents of heavy metals in effluent came from carbide slag drying process were studied, and then the composition of exhaust gas emitted from the carbide slag drying process and calcinations process of raw materials prepared with carbide slag was detected, in order to know whether there are harmful or corrosive gases released and the effect of the emissions on the environment and related equipments. The results indicate that the exhaust gases emitted from the calcination process of raw meal prepared with carbide slag is mainly composed of CO2 and water vapor, and is free from harmful gases. However, a lot of water in carbide slag during the pre-heat and decomposition process under high temperature would accelerate the corrosion of equipments. Simultaneously, a small number of heavy metal ions contained in the carbide slag can cause environmental pollution and sulfides would be adverse to the cement calcination process resulting in the crust blockage of kiln.

The Influence of Different Product Process on the Effect Ingredient Content of Ningxia Lycium barbarum

2011 ◽  
Vol 204-210 ◽  
pp. 2083-2086
Author(s):  
Yun Feng Hu ◽  
Han Yan Hu ◽  
Chang Jie Jiang ◽  
Yan Hua Zhu ◽  
Jian Ming Wang
Keyword(s):  
Amino Acid ◽  
Enzymatic Hydrolysis ◽  
Crude Protein ◽  
Freeze Drying ◽  
Raw Materials ◽  
Carotenoid Content ◽  
Drying Process ◽  
Lycium Barbarum ◽  
Effective Component

Lycium barbarum as raw materials, after press, enzymatic hydrolysis, separation and drying process to a series of different Lycium barbarum products, through determination of effective ingredients content, such as carotenoid, amino acid, crude protein, crude fat, tried to explore the influence of effective component on different processing methods. The result showed that after pressing, enzymatic hydrolysis, separation technology, a large number of carotenoid, amino acid was retained in original slurry, juice, clear juice only have little. The carotenoid content of freeze-drying fruit were lost obiously during the different course of drying, such as air-drying, mechanical-drying, freeze-drying. Spray drying can destroy crude protein and fat activity, but it can be used to improve free amino acid in Lycium barbarum.

Evaluation of physico-chemical properties of tomato powder produced by an optimized freeze drying process

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Zeyu Wu ◽  
Haiyan Wang ◽  
Li Zhang ◽  
Zhaojun Xian ◽  
Honghong Li ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Freeze Drying ◽  
Binding Capacity ◽  
Chemical Properties ◽  
Soluble Solids ◽  
Drying Process ◽  
Total Acid ◽  
Physico Chemical ◽  
Freeze Dried ◽  
Tomato Powder

Abstract In this study, the physico-chemical properties of tomato powder produced by an optimized freeze drying process (FDP) were evaluated. With the lycopene content as the dependent variable, the optimum FDP conditions (i.e., thermal cracking time of 62 s, ascorbic acid addition amount [0.13%], and particle size [Dv90] of 163 μm) were obtained through response surface methodology (RSM). The results showed that the content of lycopene in the prepared tomato powder was higher than that in two commercial products. Aldehydes were the main components among 25 kinds of aromatic substances detected in tomato powder. The values of a * and a */b *, the hydration properties including water holding capacity (WHC) and oil binding capacity (OBC), and the content of total acid, ascorbic acid, and soluble solids were improved compared to commercial spray dried and freeze dried samples. All the above results suggested that FDP was an adequate procedure for the production of high-quality tomato powder.

Characterization of Hazelnut Milk Powders: A Comparison of Spray-Drying and Freeze-Drying

2018 ◽  
Vol 14 (11-12) ◽  
Author(s):  
Ertan Ermis ◽  
Kübra Özkan Güner ◽  
Mustafa Tahsin Yilmaz
Keyword(s):  
Spray Drying ◽  
Freeze Drying ◽  
Milk Powder ◽  
Angle Of Repose ◽  
Drying Process ◽  
Residual Moisture ◽  
Hausner Ratio ◽  
Powder Samples ◽  
Supporting Material

Abstract Production of hazelnut milk powder (HMP) was investigated using maltodextrin (MD) as supporting material. Spray-drying and freeze-drying techniques were used to obtain the powder material. MD was added at concentrations of 5%, 10% and 15% (w/w) prior to drying. The powder properties were evaluated by determining flowing properties (Hausner ratio and angle of repose), thermal behaviour using DSC, molecular properties using FTIR, solubility and zeta potential. Hausner Ratio for both spray dried (SDHMP) and freze-dried (FDHMP) samples varied from 1.30 to 1.64 corresponding to very poor flow. The FDHM powder samples exhibited slightly lower Hausner Ratio values than SDHM powders. FTIR spectras showed that both SDHM and FDHM exhibited similar absorbance characteristics with slight differences. Lower endothermic transition temperatures were recorded from FDHMP when compared to SDHMP. The solubility in water for both powder samples ranged from 20 to 65 % depending on the drying method and MD content. Based on the residual moisture content, water activity, solubility and flowability, spray drying process was found to produce better quality powders compared to freeze drying process.

scholarly journals Viability of Bifidobacterium Pseudocatenulatum G4 after Spray-Drying and Freeze-Drying

2010 ◽  
Vol 3 ◽  
pp. MBI.S2728 ◽  
Author(s):  
Stephenie Wong ◽  
Barka Mohammed Kabeir ◽  
Shuhaimi Mustafa ◽  
Rosfarizan Mohamad ◽  
Anis Shobirin Meor Hussin ◽  
...  
Keyword(s):  
Spray Drying ◽  
Freeze Drying ◽  
Skim Milk ◽  
The Other ◽  
Outlet Temperature ◽  
Residual Moisture Content ◽  
Drying Process ◽  
Residual Moisture ◽  
Heat Adaptation ◽  
C 30

Viability of Bifidobacterium pseudocatenulatum G4 following spray-drying and freeze-drying in skim milk was evaluated. After spray-drying, the strain experienced over 99% loss in viability regardless of the air outlet temperature (75 and 85 °C) and the heat-adaptation temperature (45 and 65 °C, 30 min). The use of heat-adaptation treatment to improve the thermotolerance of this strain was ineffective. On the other hand, the strain showed a superior survival at 71.65%–82.07% after freeze-drying. Viable populations of 9.319–9.487 log10 cfu/g were obtained when different combinations of skim milk and sugar were used as cryoprotectant. However, the addition of sugars did not result in increased survival during the freeze-drying process. Hence, 10% (w/v) skim milk alone is recommended as a suitable protectant and drying medium for this strain. The residual moisture content obtained was 4.41% ± 0.44%.

scholarly journals Reconstitution properties of biologically active polymersomes after cryogenic freezing and a freeze-drying process

RSC Advances ◽  
2018 ◽  
Vol 8 (45) ◽  
pp. 25436-25443 ◽  
Author(s):  
Robert Ccorahua ◽  
Silvia Moreno ◽  
Hannes Gumz ◽  
Karin Sahre ◽  
Brigitte Voit ◽  
...  
Keyword(s):  
Membrane Permeability ◽  
Freeze Drying ◽  
Chemical Properties ◽  
Biologically Active ◽  
Enzymatic Reactions ◽  
Drying Process ◽  
Physico Chemical ◽  
And Storage

Polymersomes can retain their physico-chemical properties and membrane permeability for enzymatic reactions after lyophilization or cryogenic freezing and storage.

scholarly journals The Physico-Chemical Properties of Bovine and Buffalo Whey Proteins Milk by Using Ultrafiltration Membrane Technology

2020 ◽  
Vol 33 (1) ◽  
pp. 122-134
Author(s):  
Raqad R. Al-Hatim ◽  
Ali K. Al-Rikabi ◽  
Amal K. Ghadban
Keyword(s):  
Spray Drying ◽  
Freeze Drying ◽  
Whey Proteins ◽  
Chemical Properties ◽  
Ultrafiltration Membrane ◽  
Membrane Technology ◽  
Fresh Milk ◽  
Physico Chemical ◽  
Better Than ◽  
Previous Step

The current study aims to prepare whey from bovine and buffalo fresh milk to make three types of cheese, namely: thermal, acidic and enzymatic. Afterward, whey proteins have been separated, then the concentration process of whey proteins has been conducted by using ultrafiltration membrane technology. Through the previous step, two products have been obtained; first, concentrated whey proteins which is called (Retentate), while the other is called (Permeate). Applying rotary evaporator, whey proteins are concentrated and then drying in two methods: spray-drying and freeze-drying in a form of white and soft powder. The chemical composition has been studied at each phase. The results show the separation, purification, and concentration of bovine and buffalo whey proteins by using ultrafiltration membrane technology. The results show that buffalo whey proteins produced by the method of enzymatic and dried with spray-drying are better than bovine whey protein. Finally, the results show a low ratio of lactose, salts and moisture content at the stages of filtration and concentration. The results present a high proportion of protein to 80 .and low ratio lactose and salt.

scholarly journals Ultralight Industrial Bamboo Residue-Derived Holocellulose Thermal Insulation Aerogels with Hydrophobic and Fire Resistant Properties

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 477 ◽  
Author(s):  
Hanxiao Huang ◽  
Yunshui Yu ◽  
Yan Qing ◽  
Xiaofeng Zhang ◽  
Jia Cui ◽  
...  
Keyword(s):  
Freeze Drying ◽  
Raw Materials ◽  
Sem Analysis ◽  
Water Soluble ◽  
Drying Process ◽  
X Ray Diffraction ◽  
Water Contact ◽  
X Ray ◽  
3D Network ◽  
Flame Retardant Properties

In this study, water-soluble ammonium polyphosphate- (APP) and methyl trimethoxysilane (MTMS)-modified industrial bamboo residue (IBR)-derived holocellulose nanofibrils (HCNF/APP/MTMS) were used as the raw materials to prepare aerogels in a freeze-drying process. Synthetically modified aerogels were confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, and thermal stability measurements. As-prepared HCNF/APP/MTMS aerogels showed themselves to be soft and flexible. The scanning electron microscopy (SEM) analysis showed that the foam-like structure translates into a 3D network structure from HCNF aerogels to HCNF/APP/MTMS aerogels. The compressive modules of the HCNF/APP/MTMS aerogels were decreased from 38 kPa to 8.9 kPa with a density in the range of 12.04–28.54 kg/m3, which was due to the structural change caused by the addition of APP and MTMS. Compared with HCNF aerogels, HCNF/APP/MTMS aerogels showed a high hydrophobicity, in which the water contact angle was 130°, and great flame retardant properties. The peak of heat release rate (pHRR) and total smoke production (TSP) decreased from 466.6 to 219.1 kW/m2 and 0.18 to 0.04 m2, respectively, meanwhile, the fire growth rate (FIGRA) decreased to 8.76 kW/s·m2. The thermal conductivity of the HCNF/APP/MTMS aerogels was 0.039 W/m·K. All results indicated the prepared aerogels should be expected to show great potential for thermally insulative materials.

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