Agronomia

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http://repositorio.ufes.br/handle/10/17348
Programa de Pós-Graduação em Agronomia

Centro: CCAE
Telefone: (28) 3552 8983
URL do programa: https://producaovegetal.ufes.br/pt-br/pos-graduacao/PPGA/

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Navegando Agronomia por Assunto "Absorbent sachets"

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    Aplicação de biomateriais sustentáveis na conservação pós colheita
    (Universidade Federal do Espírito Santo, 2025-08-01) Coutrim, Ranyelly Leão; Ayub, Ricardo Antonio ; https://orcid.org/0000-0003-3240-8417; http://lattes.cnpq.br/1389825754483128; Zucoloto, Moises; https://orcid.org/0000-0003-0539-4750; http://lattes.cnpq.br/9552365183163692; https://orcid.org/0000-0002-5520-3548; http://lattes.cnpq.br/3030620401804094; Davi, Leandro Pin; https://orcid.org/0000-0002-2995-8007; http://lattes.cnpq.br/7662111330884819; Coelho, Jussara Moreira; https://orcid.org/0000-0002-7641-5638; http://lattes.cnpq.br/9157534666762021; Prestes, Rosilene Aparecida ; https://orcid.org/0000-0002-8400-3123; http://lattes.cnpq.br/0098706153281307; São José, Alcebíades Rebouças; https://orcid.org/0000-0002-8677-1206; http://lattes.cnpq.br/5312503102716918
    The indiscriminate use of synthetic petroleum-based polymers has caused serious environmental impacts, mainly due to their low degradability, accumulation in terrestrial and aquatic ecosystems, and the lack of efficient plastic waste management. In view of this issue, there is increasing interest in renewable and environmentally friendly alternatives capable of partially replacing conventional polymers in industrial and food applications. Among the emerging strategies, the valorization of lignocellulosic residues and the development of sustainable biopolymers stand out, integrating technological innovation, circular economy, and environmental conservation. In this context, the present study aimed to integrate food preservation strategies and forest residue valorization through three complementary chapters, addressing from the practical application of active packaging in postharvest management to the green extraction of biopolymers from forest by-products. In Chapter 1, the efficiency of active absorber sachets (zeolite, potassium permanganate, silver nitrate, and iron) was evaluated in the postharvest conservation of ‘BRS Fascínio’ peaches stored at 7 °C and 25 °C. Sachets containing potassium permanganate and iron proved to be the most effective, prolonging shelf life and preserving fruit quality. Chapter 2 presented a review on active and intelligent packaging, highlighting their role in sustainability and extending the shelf life of perishable products. In Chapter 3, the selective extraction of cellulose and lignin from the sterile bracts of Araucaria angustifolia was carried out using the ethanosolv process, which employs ethanol and hydrochloric acid. The cellulose showed Iβ polymorphism (2θ = 14.8°, 16.3°, 22.5°, 34.7°, 37°) and typical bands at 3330, 2890, 1160, and 897 cm⁻¹, while lignin exhibited bands at 3400, 1600, 1510, and 1265 cm⁻¹ and a residual band at 1740 cm⁻¹, indicating the presence of hemicellulose. It is concluded that the proposed approaches represent viable and environmentally safe alternatives for food preservation and sustainable biopolymer production, aligned with the principles of bioeconomy and circular economy