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Journal articles
Magazine articles
R&M TIP: GROUTING, Paper360º May/June 2021

R&M TIP: GROUTING, Paper360º May/June 2021

Journal articles
Magazine articles
RMM Part 4: Belief-Driven Strategy, Paper360º May/June 2021

RMM Part 4: Belief-Driven Strategy, Paper360º May/June 2021

Journal articles
Magazine articles
Success through Resilience, Paper360º May/June 2021

Success through Resilience, Paper360º May/June 2021Success through Resilience, Paper360º May/June 2021

Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º May/June 2021

TAPPI Journal Summaries, Paper360º May/June 2021

Journal articles
Magazine articles
TAPPI News, Paper360º May/June 2021

TAPPI News, Paper360º May/June 2021

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Open Access
Determining operating variables that impact internal fiber bonding using Wedge statistical analysis methods, TAPPI Journal November 2021

ABSTRACT: In this study, Wedge statistical analysis tools were used to collect, collate, clean up, plot, and analyze several years of operational data from a commercial paper machine. The z-direction tensile (ZDT) and Scott Bond tests were chosen as representative of fiber bond strength. After analyzing thousands of operational parameters, the ones with the most significant impact upon ZDT involved starch application method, starch penetration, and the amount of starch applied. Scott bond was found to be significantly impacted by formation and refining. Final calendering of the paper web has also shown an impact on internal fiber bonding.

Journal articles
Magazine articles
Open Access
Editorial: Industry coating expert Gregg Reed joins TAPPI Journal editorial board, TAPPI Journal November 2021

ABSTRACT: TAPPI and the TAPPI JOURNAL (TJ) editorial staff would like to welcome a new member to the TJ editorial board, Gregg Reed, Ph.D., technical support leader at Imerys in Gray, GA. In his current position, Gregg develops new mineral and specialty coating products for paper and packaging applications and manages customer requests, including pilot trials. He also supervises the activities of technicians and chemists in the laboratory.

Journal articles
Magazine articles
Open Access
Evaluation of rice straw for purification of lovastatin, TAPPI Journal November 2021

ABSTRACT: Cholesterol synthesis in the human body can be catalyzed by the coenzyme HMG-CoA reductase, and lovastatin, a key enzyme inhibitor, can reduce hypercholesterolemia. Lovastatin can be obtained as a secondary metabolite of Aspergillus terreus ATCC 20542. In this study, rice straw of lignocellulose was used in aeration and agitation bath fermentation in a 1-L flask, and a maximal crude extraction rate of 473 mg/L lovastatin was obtained. The crude extract was treated with silica gel (230•400 mesh) column chromatography. Ethyl acetate/ethanol (95%) was used as the mobile phase, and isolation was performed through elution with various ethyl acetate/ethanol ratios. The highest production rate of 153 mg/L was achieved with ethyl acetate/ethanol in a ratio of 8:2. The lovastatin gained from the crude extract was added to 12 fractions treated with 0.001 N alkali, and acetone was then added. After 24 h of recrystallization at 4°C, the extract underwent high-performance liquid chromatography. The purity had increased from 25% to 84.6%, and the recovery rate was 65.2%.

Journal articles
Magazine articles
In the Time of a Pandemic, AFT Invents New Refining, Paper360º November/December 2021

In the Time of a Pandemic, AFT Invents New Refining, Paper360º November/December 2021

Journal articles
Magazine articles
Over the Wire, Paper360º November/December 2021

Over the Wire, Paper360º November/December 2021

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