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Minimizing Organic Waste Generated by Pineapple Crown: A Simple Process to Obtain Cellulose for the Preparation of Recyclable Containers

1
Facultad de Ingeniería y Arquitectura, Escuela de Ing. Ambiental, Universidad José Carlos Mariátegui, Campus San Antonio, Moquegua 18001, Peru
2
BIOMET Research Group, Faculty of Science, National University of Engineering, Av. Túpac Amaru 210, Rímac 15333, Peru
*
Author to whom correspondence should be addressed.
Recycling 2020, 5(4), 24; https://doi.org/10.3390/recycling5040024
Received: 5 September 2020 / Accepted: 18 September 2020 / Published: 27 September 2020
In this study, cellulose was obtained from the residues of pineapple crown by means of simple acid pretreatment and subsequent alkaline treatment. The pretreatment consisted of washing, drying, and chopping with high shear at pH = 5 under heating. The content of cellulose, hemicellulose, and lignin in the pineapple crown was determined by chemical methods. The cellulose obtained was compared with commercial cellulose by Fourier-transform infrared (FTIR) spectroscopy, thermogravimetric analysis, and X-ray diffraction (XDR). Thus, from the obtained fiber cellulose, a food container was prepared, and its physical-mechanical properties were determined. Then, after alkali treatment, the purity of cellulose was 84.7% from the pineapple crown (56.0%) and was compared with commercial cellulose (95%). FTIR results confirmed the removal of the non-cellulosic compounds after alkali treatment. The maximum pyrolysis temperature increased to 356 °C, higher than the original fiber (322 °C), indicating greater thermal stability after chemical treatment. Furthermore, the crystallinity increased to 68% with respect to the original fiber (27%). The physical properties of the container showed a decrease in the parameters in wet 95% RH, as expected, thus facilitating its reuse. These results indicate that the pineapple crown cellulose can be obtained with significant purity, from a single chemical treatment. In addition, this polymorphous cellulose can be used to make ecofriendly reusable food containers. View Full-Text
Keywords: pineapple crown; cellulose fiber; high-shear homogenization; food container pineapple crown; cellulose fiber; high-shear homogenization; food container
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MDPI and ACS Style

Choquecahua Mamani, D.; Otero Nole, K.S.; Chaparro Montoya, E.E.; Mayta Huiza, D.A.; Pastrana Alta, R.Y.; Aguilar Vitorino, H. Minimizing Organic Waste Generated by Pineapple Crown: A Simple Process to Obtain Cellulose for the Preparation of Recyclable Containers. Recycling 2020, 5, 24. https://doi.org/10.3390/recycling5040024

AMA Style

Choquecahua Mamani D, Otero Nole KS, Chaparro Montoya EE, Mayta Huiza DA, Pastrana Alta RY, Aguilar Vitorino H. Minimizing Organic Waste Generated by Pineapple Crown: A Simple Process to Obtain Cellulose for the Preparation of Recyclable Containers. Recycling. 2020; 5(4):24. https://doi.org/10.3390/recycling5040024

Chicago/Turabian Style

Choquecahua Mamani, Diana; Otero Nole, Kristy S.; Chaparro Montoya, Efrén E.; Mayta Huiza, Dora A.; Pastrana Alta, Roxana Y.; Aguilar Vitorino, Hector. 2020. "Minimizing Organic Waste Generated by Pineapple Crown: A Simple Process to Obtain Cellulose for the Preparation of Recyclable Containers" Recycling 5, no. 4: 24. https://doi.org/10.3390/recycling5040024

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