Search
Now showing items 81-90 of 192
Integral valorisation of walnut shells based on a three-step sequential delignification
(Elsevier, 2022-05)
[EN] Walnut kernels represent no more than 50-60% of the total weight of the fruit, so the sum of walnut shells generated every year is immense. Nonetheless, these shells could be further valorised for the extraction of ...
Recovery of Bioactive Compounds from Hazelnuts and Walnuts Shells: Quantitative–Qualitative Analysis and Chromatographic Purification
(MDPI, 2020-09-24)
Hazelnut (HS) and walnut (WS) shells, an abundant by-product of the processing industries of these edible nuts, are traditionally considered as a low-value waste. However, they are a source of valuable compounds with an ...
Thermochemical and Mechanical Properties of Pine Wood Treated by In Situ Polymerization of Methyl Methacrylate (MMA)
(MDPI, 2020-07-17)
The impregnation of low-molecular-weight monomers prior to polymerize them inside the wood may be an efficient way to improve some important wood properties. This work aimed to determine some technological properties of ...
A new route towards lignin-based polyols: a highway for lignin exploitation
(2020-12-18)
El aumento del uso de productos de base petroquímica, junto con el agotamiento del petróleo y la mayor preocupación de la industria y la sociedad por la situación medioambiental actual, ha dado lugar a una intensa investigación ...
Life Cycle Assessment of various biorefinery approaches for the valorisation of almond shells
(Elsevier, 2021-10)
In the near future, sustainable and efficient biorefineries would be essential for the production of commodity chemicals and high-added value compounds. Therefore, in this work, six scenarios differing on the delignification ...
Energy and environmental analysis of flavonoids extraction from bark using alternative solvents
(Elsevier, 2021-05-04)
[EN] Tree barks are rich in extractive compounds, among which the flavonoids are considered as products of interest. Due to the increase in the demand for these natural products, the development of efficient and sustainable ...
Eco-friendly isolation and characterization of nanochitin from different origins by microwave irradiation: optimization using response surface methodology
(Elsevier, 2021-07-09)
[EN] The extraction of nanochitin from marine waste has attracted great industrial interest due to its unique properties,
namely biodegradability, biocompatibility and as a functional reinforcing agent. Conventional acid ...
Optimization of the extraction of galactoglucomannans from Pinus halepensis
(About De Gruyter, 2021-06-25)
The effectiveness of pressurized hot-water extraction conditions for obtaining galactoglucomannans (GGMs) from Pinus halepensis suitable for applications like coatings and films packaging was investigated. For this purpose, ...
Integrated hydrometallurgical process for Paval valorization.
(2020-11-12)
Esta tesis doctoral propone un proceso integrado para la valorización de residuos de la producción secundaria de aluminio (Paval de escoria salina) a través de la reducción de su contenido en flúor y minimizando la consecuente ...
Evaluation of Bioactive Release Kinetics from Crosslinked Chitosan Films with Aloe Vera
(Elsevier, 2021-07-01)
Thermocompression was employed to prepare citric acid-crosslinked chitosan films with Aloe vera (AV) as bioactive compound. Films were easy to handle and mechanical properties did not change with the addition of AV up to ...