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Showing 1 to 12 of 42 entries
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Using graduate surveys to guide curricular reform.

Family medicine

Dill DR, Strenecky BJ, Davis JM, Holtzapple KE.
PMID: 3556888
Fam Med. 1986 Sep-Oct;18(5):314-5.

No abstract available.

The HCH-1 model of enzymatic cellulose hydrolysis.

Biotechnology and bioengineering

Holtzapple MT, Caram HS, Humphrey AE.
PMID: 18553446
Biotechnol Bioeng. 1984 Jul;26(7):775-80. doi: 10.1002/bit.260260723.

Solka Floc BW200 was enzymatically hydrolyzed in a batch reactor using a commercial cellulase preparation. A total of 50 different hydrolysis conditions were run within a 10-fold range in enzyme concentration and a 30-fold range in cellulose concentration. The...

Oxygen transfer in a pulse bioreactor.

Biotechnology and bioengineering

Monahan PB, Holtzapple MT.
PMID: 18613105
Biotechnol Bioeng. 1993 Sep 05;42(6):724-8. doi: 10.1002/bit.260420607.

Oxygen transfer in a novel pulse bioreactor has been evaluated. The agitator consists of a series of alternately fixed and movable parallel plates mounted so that the movable plates vibrate at 30 Hz causing a pulsating fluid motion. Pure...

A comparison of two empirical models for the enzymatic hydrolysis of pretreated poplar wood.

Biotechnology and bioengineering

Holtzapple MT, Caram HS, Humphrey AE.
PMID: 18553480
Biotechnol Bioeng. 1984 Aug;26(8):936-41. doi: 10.1002/bit.260260818.

Two empirical models for the enzymatic hydrolysis of cellulose are used to analyze the same set of experimental data to determine if one model is superior to the other. Both models adequately describe the data. The parameters in both...

ATP regeneration by thermostable ATP synthase.

Biotechnology and bioengineering

Nam KY, Struck DK, Holtzapple MT.
PMID: 18624363
Biotechnol Bioeng. 1996 Aug 05;51(3):305-16. doi: 10.1002/(SICI)1097-0290(19960805)51:3<305::AID-BIT6>3.0.CO;2-H.

We investigated the possibility of using thermostable ATP synthase (TF(0)F(1)) for a new ATP regeneration method. TF(0)F(1) was purified from a thermophilic bacterium, PS3, and reconstituted into liposomes. ATP synthesis experiments showed that TF(0)F(1) liposomes could synthesize ATP in...

Development of highly digestible animal feed from lignocellulosic biomass Part 1: Oxidative lime pretreatment (OLP) and ball milling of forage sorghum.

Translational animal science

Falls M, Meysing D, Lonkar S, Liang C, Karim MN, Carstens G, Tedeschi LO, Holtzapple MT.
PMID: 32704644
Transl Anim Sci. 2017 Apr 01;1(2):208-214. doi: 10.2527/tas2017.0024. eCollection 2017 Apr.

To feed a growing population, alternative sources of animal feed (e.g., lignocellulose) are needed to replace grains (e.g., corn). Oxidative lime pretreatment (OLP) increases lignocellulose digestibility by removing lignin and hemicellulose acetyl content. Adding a mechanical pretreatment (e.g., ball...

Assessment of shock pretreatment and alkali pretreatment on corn stover using enzymatic hydrolysis.

Biotechnology progress

Olokede O, Hsu SC, Schiele S, Ju H, Holtzapple M.
PMID: 34591371
Biotechnol Prog. 2021 Sep 30;e3217. doi: 10.1002/btpr.3217. Epub 2021 Sep 30.

This study investigates digestibility enhancements of lignocellulose from shock pretreatment, alkaline pretreatment, and combination. Shock pretreatment subjects aqueous slurries of lignocellulose to shock waves, which disrupts its structure rendering it more susceptible to hydrolysis. Alkaline pretreatment submerges the biomass...

FLUTE: Fast and reliable knowledge retrieval from biomedical literature.

Database : the journal of biological databases and curation

Holtzapple E, Telmer CA, Miskov-Zivanov N.
PMID: 32761077
Database (Oxford). 2020 Jan 01;2020. doi: 10.1093/database/baaa056.

State-of-the-art machine reading methods extract, in hours, hundreds of thousands of events from the biomedical literature. However, many of the extracted biomolecular interactions are incorrect or not relevant for computational modeling of a system of interest. Therefore, rapid, automated...

Preschool Participation and BMI at Kindergarten Entry: The Case for Early Behavioral Intervention.

Journal of obesity

McGrady ME, Mitchell MJ, Theodore SN, Sersion B, Holtzapple E.
PMID: 20721345
J Obes. 2010;2010. doi: 10.1155/2010/360407. Epub 2010 Apr 18.

Preschool years (ages 3-5) are a critical period in growth and development. Emerging studies suggest that preschool attendance may be linked to future weight, and perhaps obesity. This study examined relationships between public preschool attendance, demographic variables, and weight...

Biomass conversion to mixed alcohol fuels using the MixAlco process.

Applied biochemistry and biotechnology

Holtzapple MT, Davison RR, Ross MK, Albrett-Lee S, Nagwani M, Lee CM, Lee C, Adelson S, Kaar W, Gaskin D, Shirage H, Chang NS, Chang VS, Loescher ME.
PMID: 15304682
Appl Biochem Biotechnol. 1999;77:609-31. doi: 10.1385/abab:79:1-3:609.

The MixAlco process is a patented technology that converts any biodegradable material (e.g., sorted municipal solid waste, sewage sludge, industrial biosludge, manure, agricultural residues, energy crops) into mixed alcohol fuels containing predominantly 2-propanol, but also higher alcohols up to...

Human cystinosis: intracellular deposition of cystine.

Science (New York, N.Y.)

Hummeler K, Zajac BA, Genel M, Holtzapple PG, Segal S.
PMID: 17768922
Science. 1970 May 15;168(3933):859-60. doi: 10.1126/science.168.3933.859.

Membrane-limited inclusions were found in the cytoplasm of cells of the rectal mucosa, leukocytes, and cultured fibroblasts from two humans with cystinosis. Most of the inclusions contained amorphous material, presumably cystine. In cells of the rectal mucosa the material...

Parametric analysis of the errors associated with the Michaelis-Menten equation.

Biotechnology and bioengineering

Brown RF, Holtzapple MT.
PMID: 18595055
Biotechnol Bioeng. 1990 Dec 20;36(11):1141-50. doi: 10.1002/bit.260361109.

Based on the well-known mechanism describing Michaelis-Menten kinetics, three rate expressions may be developed: the exact solution (Model 1), a rate equation resulting from the pseudo-steady-state assumption (Model 2), and Model 2 with the additional assumption that the amount...

Showing 1 to 12 of 42 entries