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.

scholarly journals Determination of End Point of Primary Drying in Freeze-Drying Process Control

2010 ◽  
Vol 11 (1) ◽  
pp. 73-84 ◽  
Author(s):  
Sajal M. Patel ◽  
Takayuki Doen ◽  
Michael J. Pikal
Keyword(s):  
Process Control ◽  
Freeze Drying ◽  
Drying Process ◽  
End Point

scholarly journals Effect of addition an amino acid or its combination with EDTA on DNA integrity and morphometry sperm heads of freeze-dried bovine spermatozoa

2020 ◽  
Vol 45 (3) ◽  
pp. 189-196
Author(s):  
S. Said ◽  
T. Maulana ◽  
S. Setiorini ◽  
G.E. Ibrahim ◽  
M.N. Ramadhan ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Amino Acid ◽  
Freeze Drying ◽  
Sperm Head ◽  
Test Method ◽  
Dna Integrity ◽  
Drying Process ◽  
Freeze Dried ◽  
Bovine Spermatozoa ◽  
Amino Acid Glycine

The objective of the current study was to investigate the effect of addition an amino acid or its combination with EDTA on DNA integrity and morphometry sperm heads of freeze-dried bovine spermatozoa. Spermatozoa were freeze-dried in medium with the addition of an amino acid glycine, cysteine, glutamine, or its combination with EDTA. Sperm head morphometry was identified at 400X magnification using Axio Vision(Zeiss Company, Germany), while for membrane plasma integrity (MPI) determined by calculation of the percentage of spermatozoa having intact plasma membrane by osmotic resistance test method and DNA integrity analysis using acridine orange staining. Sperm head had declined in size after the freeze-drying process, MPI of FD spermatozoa gradually increased significantly when FD solution was added with an amino acid solution (glycine, cysteine) and its combination with EDTA. DNA integrity of all freeze-dried spermatozoa treatments was remaining intact, no significantly different (P>0.01) among treatments. The present study concluded that the addition of an amino acid (glycine, cysteine) or its combination with EDTA could be reduced morphometric sperm heads and plasma membrane damage of freeze-dried bovine spermatozoa, however, DNA integrity of bovine sperm nucleus remaining intact after the freeze-drying process without addition both amino acids and EDTA. 

scholarly journals Types of Acid and Drying Method Differently Affect the Chemical Profile of Sodium Caseinate

2021 ◽  
Author(s):  
F. Maruddin ◽  
R. Malaka ◽  
S. Sabil ◽  
S. Baba ◽  
H. Amqam ◽  
...  
Keyword(s):  
Crude Protein ◽  
Freeze Drying ◽  
Sodium Caseinate ◽  
Ash Content ◽  
Chemical Components ◽  
Drying Methods ◽  
Drying Method ◽  
Chemical Profile ◽  
Experimental Group

Background: Sodium caseinate is a rich source of protein and minerals originating from animals. Numerous food and non-food products are made from sodium caseinate. The present study investigated the chemical components (moisture, crude protein, ash, and soluble crude protein) of sodium caseinate prepared by different acids and drying techniques. Methods: A completely randomized factorial design was used by different acids including hydrochloric acid (HCl) and acetic acid, and also drying methods including oven (50 °C for 48 h) and freeze drying (-40 °C for 48 h). In each experimental group, sodium caseinate was obtained for determination of moisture, crude protein, ash, and soluble crude protein. Data were statistically evaluated using an ANOVA in SPSS 18.0. Results: The interaction of both acids and drying methods significantly (p<0.01) affected moisture, crud protein, and ash content. HCl treatment coupled with freeze drying was the best combination, resulting in an appreciably higher content of crude protein (52.90%), moisture (5.38%), and soluble protein (0.85%). Conclusion: The kinds of acid and drying method altered the chemically profile of sodium caseinate. The combination of HCl and freeze drying could be the considered as the best approach, resulting in good chemical characteristics of sodium caseinate.

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.

Determination of freeze-drying process variables for strawberries

1997 ◽  
Vol 32 (2) ◽  
pp. 133-154 ◽  
Author(s):  
Chokri Hammami ◽  
Frédéric René
Keyword(s):  
Freeze Drying ◽  
Process Variables ◽  
Drying Process

DEGRADATION OF 2,4-DICHLOROPHENOXYACETIC ACID BY Pseudomonas fluorescens Strain HH

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
Nguyen Thi Oanh ◽  
Ha Danh Duc ◽  
Tran Dat Huy ◽  
Nguyen Gia Hien ◽  
Nguyen Thi Huynh Nhu
Keyword(s):  
Pseudomonas Fluorescens ◽  
Freeze Drying ◽  
Exponential Growth Phase ◽  
Dichlorophenoxyacetic Acid ◽  
Drying Process ◽  
Suspension Cells ◽  
Edwards Model ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Cell Growth Kinetics

Pseudomonas fluorescens HH isolated from soil utilized 2,4-Dichlorophenoxyacetic acid (2,4D) as a sole carbon and energy source. The strain completely utilized 1.0 mM of 2,4D within 30 hr. The immobilized Pseudomonas fluorescens HH degraded 2,4D with higher rates compared to the rates of free-suspension cells. The determination of degradation and cell growth kinetics in exponential growth phase of bacteria showed that both fitted with the Edwards model, in which the maximal utilization rates and inhibition coefficient were 0.079 ± 0.008 mM/h and 0.820 ± 0.03 mM, respectively. The addition of glycerol as a cryoprotectant into alginate increased the survival of bacteria in beads during freeze-drying process, which resulted in reducing the adverse effects of bead lyophilization.

Determination of the reactivity of cellulosic substrates towards enzymatic hydrolysis

2018 ◽  
Vol 84 (10) ◽  
pp. 5-11 ◽  
Author(s):  
E. I. Kashcheyeva ◽  
V. V. Budaeva
Keyword(s):  
Enzymatic Hydrolysis ◽  
Reducing Sugars ◽  
Raw Materials ◽  
Scale Up ◽  
Practical Significance ◽  
Gravimetric Analysis ◽  
Wide Range ◽  
Reducing Substances ◽  
Hydrolysis Of

An ever-growing scientific interest in the development of effective methods for transformation of various cellulosic resources into fermentable sugars necessitates development of a universal procedure for determination of the reactivity of cellulosic substrates towards enzymatic hydrolysis. The practical significance consists in maximum accessibility of the procedure for the labs of pilot-production enterprises engaged in testing and scaling up the biotech processes. The developed procedure fully complies with modern requirements and relies on measuring the concentration of reducing sugars (spectrophotometry and HPLC) in the enzymatic hydrolyzates obtained from pre-prepared substrates, the biocatalysis being run by a cocktail composed of available CelluLuxe-A and BrewZyme-BGX. On top of that, the procedure implies gravimetric analysis of the solid residues after hydrolysis of substrates. Cellulosic biomasses can usually be fermented for control without any pretreatment, however, commercial celluloses can be used as well. The use of the developed procedure is shown to provide prompt and high-quality assessment of the reactivity of a series of chosen substrates to enzymatic hydrolysis. In contrast to the methods of enzymatic hydrolysis discussed in literature for evaluation of the enzyme efficiency, the developed procedure allows arranging of chosen cellulosic raw materials in a descending order of their reactivity to hydrolysis using the same multi-enzyme cocktail and, moreover can demonstrate dependence of the reactivity of substrates on the pretreatment method. The results can be presented as a dependence of the concentration (yield) of reducing sugars on the duration of enzymatic hydrolysis of the substrate, and also in the form of the calculated hydrolysis rates, final yields of reducing sugars including pentoses, content of glucose component of reducing substances and decrease in mass. The procedure was repeatedly tested on a wide range of cellulosic substrates and provided reliable results regarding evaluation of their reactivity and forecasting of the scale-up results of enzymatic hydrolysis, including that in aqueous medium when preparing nutrient broths for microbiological synthesis.

scholarly journals Modelling the primary drying step for the determination of the optimal dynamic heating pad temperature in a continuous pharmaceutical freeze-drying process for unit doses

2017 ◽  
Vol 532 (1) ◽  
pp. 185-193 ◽  
Author(s):  
Laurens De Meyer ◽  
Joris Lammens ◽  
Séverine Thérèse F.C. Mortier ◽  
Brecht Vanbillemont ◽  
Pieter Jan Van Bockstal ◽  
...  
Keyword(s):  
Freeze Drying ◽  
Drying Process ◽  
Optimal Dynamic ◽  
Dynamic Heating
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