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Kingsport Celebrates Its Centennial, Paper360º November/Dec

Kingsport Celebrates Its Centennial, Paper360º November/December 2016

The Mechanism of Bonding, TAPPI Journal September 2022

ABSTRACT: Three factors are involved in cellulose bonding--available area, contact, and hydrogen bonding.

The Future of Paper Drying...with Today’s Technologies, Paper360º January/February 2025

Energy Guide Can Unlock Mill Cost Savings, Paper360º May/June 2025

Summaries from TAPPI Journal February 2025 and March 2025 Issues, Paper360º May/June 2025

Five Reliability and Maintenance Management Mistakes, Paper360º May/June 2025

Incorporation of post-consumer pizza boxes in the recovered fiber stream: Impacts of grease on finished product quality, TAPPI Journal March 2021

ABSTRACT: Grease and cheese contamination of used pizza boxes has led to misunderstanding and controversy about the recyclability of pizza boxes. Some collection facilities accept pizza boxes while others do not. The purpose of this study is to determine whether typical grease or cheese contamination levels associated with pizza boxes impact finished product quality. Grease (from vegetable oil) and cheese are essentially hydrophobic and in sufficiently high concentration could interfere with interfiber bonding, resulting in paper strength loss.Findings from this study will be used to determine the viability of recycling pizza boxes at current and future con-centrations in old corrugated containers (OCC) recovered fiber streams. These findings will also be used to inform the acceptability of pizza boxes in the recycle stream and educate consumers about acceptable levels of grease or cheese residue found on these recycled boxes.

Achieving Progressive Quality Culture Through Analytical Problem Solving, Paper360º March/April 2021

Achieving Progressive Quality Culture Through Analytical Problem Solving, Paper360º March/April 2021

Uncovering Growth Opportunities in Graphic Papers, Paper360º March/April 2021

Uncovering Growth Opportunities in Graphic Papers, Paper360º March/April 2021

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%.