نتایج جستجو برای: pretreatments

تعداد نتایج: 1775  

Journal: :Journal of Coatings Technology and Research 2017

Journal: :DEStech Transactions on Materials Science and Engineering 2017

2007
T. Aktas S. Fujii Y. Kawano S. Yamamoto

Effects of pretreatments with trehalose on drying of sliced vegetables (potato and carrot) were experimentally investigated. Two different pretreatment methods were tested. Sliced vegetables were steam-blanched and then immersed in a sugar solution. In another method sliced vegetables were coated with sugar powder, and then steam-blanched. Solid gain and water loss during pretreatment were meas...

Journal: :Dental materials journal 2012
Keisuke Kambara Masatoshi Nakajima Keiichi Hosaka Masahiro Takahashi Ornnicha Thanatvarakorn Shizuko Ichinose Richard M Foxton Junji Tagami

The purpose of this study was to compare the dentin bond strength of three self-adhesive cements with smear layer pretreatments using a calcium-chelating agent (EDTA) and deproteinizing solution (NaOCl) and to evaluate their interfacial characteristics. Smear layer-covered dentin surfaces were pretreated with EDTA for 60 s, NaOCl for 5 and 15 s, or none. Three self-adhesive cements; Clearfil SA...

2017
Chukwan Techakanon Diane M. Barrett

The objective of this study was to determine the effect of calcium chloride and calcium lactate pretreatments at different concentrations (1, 1.5 and 2% w/v) on enzymatic browning of clingstone and freestone peaches following high-pressure processing (HPP) at 200 MPa for 10 min. Proton nuclear magnetic resonance (H-NMR) relaxometry indicated that following calcium pretreatment and HPP, both pea...

Journal: :Applied biochemistry and biotechnology 2011
G S Wang Jae-Won Lee J Y Zhu Thomas W Jeffries

Aqueous dilute acid pretreatments of corncob were conducted using cylindrical pressure vessels in an oil bath. Pretreatments were conducted in a temperature range of 160-190 °C with acid-solution-to-solid-corncob ratio of 2. The acid concentration (v/v) in the pretreatment solution was varied from 0% to 0.7%, depending on temperature. This gives acid charge on ovendry-weight corncob of 0-2.58%....

Journal: :Bioresource technology 2014
Zhiqiang Li Zehui Jiang Benhua Fei Zhiyong Cai Xuejun Pan

The response and behavior of bamboo green, timber, and yellow of moso bamboo (Phyllostachys heterocycla) to three pretreatments, sulfite (SPORL), dilute acid (DA), and alkali (NaOH), were investigated and compared with varied chemical loadings at 180°C for 30 min with a 6.25:1 (v/w) liquor-to-bamboo ratio. All the pretreatments improved the enzymatic digestibility of bamboo substrates. Under th...

Journal: :Bioresource technology 2011
Jian Shi Mirvat A Ebrik Bin Yang Rebecca J Garlock Venkatesh Balan Bruce E Dale V Ramesh Pallapolu Y Y Lee Youngmi Kim Nathan S Mosier Michael R Ladisch Mark T Holtzapple Matthew Falls Rocio Sierra-Ramirez Bryon S Donohoe Todd B Vinzant Richard T Elander Bonnie Hames Steve Thomas Ryan E Warner Charles E Wyman

Accellerase 1000 cellulase, Spezyme CP cellulase, β-glucosidase, Multifect xylanase, and beta-xylosidase were evaluated for hydrolysis of pure cellulose, pure xylan, and switchgrass solids from leading pretreatments of dilute sulfuric acid, sulfur dioxide, liquid hot water, lime, soaking in aqueous ammonia, and ammonia fiber expansion. Distinctive sugar release patterns were observed from Avice...

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