Academic Journal
Calorific Value and Chemical Composition of Five Semi-Arid Mexican Tree Species
| العنوان: | Calorific Value and Chemical Composition of Five Semi-Arid Mexican Tree Species |
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| المؤلفون: | Maginot Ngangyo-Heya, Rahim Foroughbahchk-Pournavab, Artemio Carrillo-Parra, José Guadalupe Rutiaga-Quiñones, Volker Zelinski, Luis Fernando Pintor-Ibarra |
| المصدر: | Forests, Vol 7, Iss 3, p 58 (2016) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2016 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | calorific value, chemical components, timber species, Plant ecology, QK900-989 |
| الوصف: | The current global energy crisis has generated growing interest in looking for alternatives to traditional fossil fuels, presenting lignocellulosic materials as a promising resource for sustainable energy production. In this paper, the calorific values and chemical composition of the trunks, branches, twigs and leaves of five timber species of the semi-arid land of Mexico (Helietta parvifolia (Gray) Benth., Ebenopsis ebano (Berl.) Barneby, Acacia berlandieri (Benth.), Havardia pallens (Benth.) Britton & Rose and Acacia wrightii (Benth.)) were determined according to international standards. The results highlighted the calorific value ranges of 17.56 to 18.61 MJ kg−1 in trunks, 17.15 to 18.45 MJ kg−1 in branches, 17.29 to 17.92 MJ kg−1 in twigs, and 17.35to 19.36 MJ kg−1 in leaves. The pH presented an acidic trend (3.95–5.64). The content of mineral elements varied in trunks (1.09%–2.29%), branches (0.86%–2.75%), twigs (4.26%–6.76%) and leaves (5.77%–11.79%), showing the higher proportion in Ca (57.03%–95.53%), followed by K (0.95%–19.21%) and Mg (0.88%–13.47%). The highest amount of extractives was obtained in the methanolic solvent (3.96%–17.03%). The lignin recorded values of 28.78%–35.84% for trunks, 17.14%–31.39% for branches and 20.61%–29.92% for twigs. Lignin showed a moderately strong correlation (r = 0.66) with calorific value, but the best mathematical model was registered with the calorific value depending on the pH and lignin (R2 = 58.86%). |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1999-4907 |
| Relation: | http://www.mdpi.com/1999-4907/7/3/58; https://doaj.org/toc/1999-4907; https://doaj.org/article/ab4b57f305fd4d4bb4321df73b7532e7 |
| DOI: | 10.3390/f7030058 |
| الاتاحة: | https://doi.org/10.3390/f7030058 https://doaj.org/article/ab4b57f305fd4d4bb4321df73b7532e7 |
| رقم الانضمام: | edsbas.83F85C4F |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 19994907 |
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| DOI: | 10.3390/f7030058 |