Enzymatic Glucose and Xylose Production from Paper Mill Rejects
Recycled paper fiber rejects have shown potential as a source of waste-to-resource carbohydrates for renewable chemicals production. This study examined three classes of recycled paper fines (old corrugated containers, old newspaper, and mixed office waste) and two industrial papermaking rejects str...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Recycling |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2313-4321/7/2/24 |
| _version_ | 1797409536904003584 |
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| author | Joseph Rauzi Ulrike Tschirner |
| author_facet | Joseph Rauzi Ulrike Tschirner |
| author_sort | Joseph Rauzi |
| collection | DOAJ |
| description | Recycled paper fiber rejects have shown potential as a source of waste-to-resource carbohydrates for renewable chemicals production. This study examined three classes of recycled paper fines (old corrugated containers, old newspaper, and mixed office waste) and two industrial papermaking rejects streams from different recycling mills (one mill processes linerboard and the other old corrugated cardboard). The effect of chemical pretreatment using dilute sodium hydroxide, hot water and dilute sulfuric acid on enzymatic glucose and xylose yields was evaluated. Enzymatic hydrolysis results indicated that recycled fiber streams with more old corrugated cardboard have higher potential to produce carbohydrates. The recycled cardboard rejects produced more glucose and xylose per kilogram of rejects than the linerboard rejects under all untreated and pretreated conditions. The highest producing rejects sample was sodium hydroxide pretreated cardboard rejects with 373 g glucose and 61 g xylose produced per kilogram of rejects. However, a simple hot water pretreatment showed similar results, with 335 g glucose and 58 g xylose produced per kilogram of rejects. The hot water pretreatment is recommended due to its comparable yield and lower chemical addition. |
| first_indexed | 2024-03-09T04:15:50Z |
| format | Article |
| id | doaj.art-5e2f5ac02e7f4560925e5ae9f25c120d |
| institution | Directory Open Access Journal |
| issn | 2313-4321 |
| language | English |
| last_indexed | 2024-03-09T04:15:50Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Recycling |
| spelling | doaj.art-5e2f5ac02e7f4560925e5ae9f25c120d2023-12-03T13:54:17ZengMDPI AGRecycling2313-43212022-04-01722410.3390/recycling7020024Enzymatic Glucose and Xylose Production from Paper Mill RejectsJoseph Rauzi0Ulrike Tschirner1Department of Bioproducts and Biosystems Engineering, College of Food, Agriculture and Natural Resource Sciences, University of Minnesota, Saint Paul, MN 55108, USADepartment of Bioproducts and Biosystems Engineering, College of Food, Agriculture and Natural Resource Sciences, University of Minnesota, Saint Paul, MN 55108, USARecycled paper fiber rejects have shown potential as a source of waste-to-resource carbohydrates for renewable chemicals production. This study examined three classes of recycled paper fines (old corrugated containers, old newspaper, and mixed office waste) and two industrial papermaking rejects streams from different recycling mills (one mill processes linerboard and the other old corrugated cardboard). The effect of chemical pretreatment using dilute sodium hydroxide, hot water and dilute sulfuric acid on enzymatic glucose and xylose yields was evaluated. Enzymatic hydrolysis results indicated that recycled fiber streams with more old corrugated cardboard have higher potential to produce carbohydrates. The recycled cardboard rejects produced more glucose and xylose per kilogram of rejects than the linerboard rejects under all untreated and pretreated conditions. The highest producing rejects sample was sodium hydroxide pretreated cardboard rejects with 373 g glucose and 61 g xylose produced per kilogram of rejects. However, a simple hot water pretreatment showed similar results, with 335 g glucose and 58 g xylose produced per kilogram of rejects. The hot water pretreatment is recommended due to its comparable yield and lower chemical addition.https://www.mdpi.com/2313-4321/7/2/24papercellulosic biofuelsbio-based productsrecyclingbiomasswaste-derived products |
| spellingShingle | Joseph Rauzi Ulrike Tschirner Enzymatic Glucose and Xylose Production from Paper Mill Rejects Recycling paper cellulosic biofuels bio-based products recycling biomass waste-derived products |
| title | Enzymatic Glucose and Xylose Production from Paper Mill Rejects |
| title_full | Enzymatic Glucose and Xylose Production from Paper Mill Rejects |
| title_fullStr | Enzymatic Glucose and Xylose Production from Paper Mill Rejects |
| title_full_unstemmed | Enzymatic Glucose and Xylose Production from Paper Mill Rejects |
| title_short | Enzymatic Glucose and Xylose Production from Paper Mill Rejects |
| title_sort | enzymatic glucose and xylose production from paper mill rejects |
| topic | paper cellulosic biofuels bio-based products recycling biomass waste-derived products |
| url | https://www.mdpi.com/2313-4321/7/2/24 |
| work_keys_str_mv | AT josephrauzi enzymaticglucoseandxyloseproductionfrompapermillrejects AT ulriketschirner enzymaticglucoseandxyloseproductionfrompapermillrejects |