scholarly journals Biobutanol Production from Bagasse Using Ammonia Pre-treatment and Acid Hydrolysis Method

2019 ◽  
Vol 543 ◽  
pp. 012053
Author(s):  
A M Jannah ◽  
D U Amalia ◽  
N S Hana
Keyword(s):  
Acid Hydrolysis ◽  
Hydrolysis Method ◽  
Pre Treatment

Preparation of κ-carra-oligosaccharides with microwave assisted acid hydrolysis method

2015 ◽  
Vol 14 (2) ◽  
pp. 345-349 ◽  
Author(s):  
Guangsheng Li ◽  
Xia Zhao ◽  
Youjing Lv ◽  
Miaomiao Li ◽  
Guangli Yu
Keyword(s):  
Acid Hydrolysis ◽  
Hydrolysis Method ◽  
Microwave Assisted

Total Solids and Ether Extract in Fish and Other Marine Products

1963 ◽  
Vol 46 (4) ◽  
pp. 746-748
Author(s):  
H M Risley
Keyword(s):  
Acid Hydrolysis ◽  
Ether Extract ◽  
Total Solids ◽  
Hydrolysis Method ◽  
Canned Fish ◽  
Marine Products ◽  
Frozen Fish

Abstract The first action modified Babcock method for crude fat in canned fish, 18.013, was studied collaboratively on 2 samples of canned fish and 2 samples of frozen fish. The results were compared with those by the official acid hydrolysis method, 18.012. Nine analysts, representing 5 different laboratories, cooperated in the study. The results show that the modified Babcock method has about the same degree of reliability as the acid hydrolysis method. It was recommended that the method be made official, after some slight changes in the wording.

Rapid Method for Separation of Extraneous Materials from Whole and Degerminated Corn Meal, Prepared Mustard, and Soy Flour

1967 ◽  
Vol 50 (3) ◽  
pp. 505-509
Author(s):  
Mary T Miller
Keyword(s):  
Acid Hydrolysis ◽  
Rapid Method ◽  
Chloride Solution ◽  
Collaborative Study ◽  
Mineral Oil ◽  
Soy Flour ◽  
Corn Meal ◽  
Hydrolysis Method ◽  
Separatory Funnel ◽  
Time Required

Abstract A rapid method, based on acid hydrolysis in the presence of mineral oil, has been developed to separate extraneous materials from whole and degerminated corn meal, prepared mustard, and soy flour. Corn meal may be first examined for rodent excreta by method 36.032 and then examined for light filth, or it may be analyzed directly for light filth by the acid hydrolysis method. Soy flour is prepared for analysis by solubilizing the protein in dilute sodium chloride solution in the presence of mineral oil. The Kilborn separatory funnel is used with all 3 products. The proposed method improves recoveries of insect fragments by 13—34% and rodent hair recoveries hy 25—54%. Analyst time required for actual assay is reduced by at least onethird. The method will be subjected to collaborative study

Practical Limitations of the Dilute Acid Hydrolysis Method for Solubilizing Meat and Bone Meal Protein

2017 ◽  
Vol 5 (12) ◽  
pp. 11652-11659 ◽  
Author(s):  
Matthew Essandoh ◽  
Rafael A. Garcia ◽  
Christine M. Nieman ◽  
Lorelie P. Bumanlag ◽  
George J. Piazza ◽  
...  
Keyword(s):  
Acid Hydrolysis ◽  
Dilute Acid ◽  
Meat And Bone Meal ◽  
Bone Meal ◽  
Dilute Acid Hydrolysis ◽  
Hydrolysis Method ◽  
Meal Protein

scholarly journals Bioethanol production from lignocellulosic sugarcane leaves and tops

2017 ◽  
Vol 28 (3) ◽  
pp. 1 ◽  
Author(s):  
Charlie Marembu Dodo ◽  
Samphson Mamphweli ◽  
Omobola Okoh
Keyword(s):  
Acid Hydrolysis ◽  
Sodium Hydroxide ◽  
Cost Effective ◽  
Enzyme Hydrolysis ◽  
Fermentable Sugars ◽  
Bioethanol Production ◽  
Dilute Acid ◽  
Dilute Acid Hydrolysis ◽  
Pre Treatment ◽  
Biological Methods

Bioethanol production is one of the most promising possible substitutes for fossil-based fuels, but there is a need to make available cost-effective methods of production if it is to be successful. Various methods for the production of bioethanol using different feedstocks have been explored. Bioethanol synthesis from sugarcane, their tops and leaves have generally been regarded as waste and discarded. This investigation examined the use of lignocellulosic sugarcane leaves and tops as biomass and evaluated their hydrolysate content. The leaves and tops were hydrolysed using concentrated and dilute sulphuric acid and compared with a combination of oxidative alkali-peroxide pre-treatment with enzyme hydrolysis using the enzyme cellulysin® cellulase. Subsequent fermentation of the hydrolysates into bioethanol was done using the yeast saccharomyces cerevisae. The problem of acid hydrolysis to produce inhibitors was eliminated by overliming using calcium hydroxide and this treatment was subsequently compared with sodium hydroxide neutralisation. It was found that oxidative alkali pre-treatment with enzyme hydrolysis gave the highest yield of fermentable sugars of 38% (g/g) for 7% (v/v) peroxide pretreated biomass than 36% (g/g) for 5% (v/v) with the least inhibitors. Concentrated and dilute acid hydrolysis each gave yields of 25% (g/g) and 22% (g/g) respectively, although the acid required a neutralisation step, resulting in dilution. Alkaline neutralisation of acid hydrolysates using sodium hydroxide resulted in less dilution and loss of fermentable sugars, compared with overliming. Higher yields of bioethanol of 13.7 g/l were obtained from enzyme hydrolysates than the 6.9 g/l ethanol from dilute acid hydrolysates. There was more bioethanol yield of 13.7 g/l after 72 hours of fermentation with the yeast than the 7.0 g/l bioethanol after 24 hours.This research showed that it is possible to use sugarcane waste material to supplement biofuel requirements and that combining the chemical and biological methods of pretreatments can give higher yields at a faster rate.

scholarly journals Pemanfaatan Ubi Jalar (Ipomoea Babatas, L.) Menjadi Sirup Glukosa Dengan Metode Hidrolisis Asam

2020 ◽  
Vol 4 (1) ◽  
pp. 21-27
Author(s):  
Lukhi Mulia Shitophyta
Keyword(s):  
Acid Hydrolysis ◽  
Sweet Potato ◽  
Glucose Production ◽  
Raw Material ◽  
Sweet Potatoes ◽  
Hydrolysis Time ◽  
Glucose Content ◽  
Hydrolysis Method ◽  
Glucose Syrup

Sweet potato (Ipomea Babatas, L.) is a tuber plant that contains carbohydrates, calcium, and starch. Besides being consumed as food, sweet potato can be used as a raw material for making glucose syrup. The study aimed to investigate the effect of hydrolysis time and HCl volume on glucose production. The starch was extracted from sweet potatoes then deposited for an hour. The glucose syrup production was carried out by acid hydrolysis method at 100°C. The results showed that the highest glucose content of 62.76% was obtained at 30 minutes hydrolysis time and 15 ml HCl volume. The smallest glucose content is obtained at the longest hydrolysis time. The greater the volume of HCl, the smaller the glucose content.

scholarly journals Intensifying the synthesis of starch nanoparticles using ultrasound-assisted acid hydrolysis method

2021 ◽  
Author(s):  
Vikas S Hakke ◽  
Shirish Sonawane ◽  
Sivakumar Manickam ◽  
Sami Boufi ◽  
Dipak V Pinjari ◽  
...  
Keyword(s):  
Acid Hydrolysis ◽  
Acid Concentration ◽  
Ultrasound Irradiation ◽  
Starch Granules ◽  
Surface Charges ◽  
Hydrolysis Method ◽  
Starch Nanoparticles ◽  
Ultrasound Assisted ◽  
Size And Morphology ◽  
Time Required

Abstract In the present study, an intensified approach for the synthesis of starch nanoparticles (SNPs) was demonstrated by using ultrasound-assisted acid hydrolysis method. The conventional acid hydrolysis for the synthesis of SNPs was intensified using ultrasound. The overall time required to convert starch granules to SNPs in the conventional acid hydrolysis method (48 h) was significantly reduced to 45 min by simultaneous acid hydrolysis and ultrasound irradiation. The acid concentration was found to be an important parameter for obtaining the desired size and morphology of the synthesized SNPs. The variation in the surface charges associated with the SNPs was confirmed through measuring their zeta potential. These potential charges on the surface of SNPs induce crystal growth among the synthesized nanoparticles. The irregular crystal morphology at higher acid concentration clearly shows SNPs' attachment with each other by coalescence. The higher crystallinity for SNPs was observed at low acid concentration; however, the lower acid concentration (0.5 M) leads to the smaller particle size of SNPs from 40 to 60 nm, with the overall yield of 23%. The proposed ultrasound method is more efficient and reproducible for the synthesis of SNPs for various applications.

Sign in / Sign up

Export Citation Format

Share Document