Physical and chemical characterization of yacon tuberous roots at different altitudes and planting times
| Autor: | Leonard Ca Machado, Raquel Reis Lima, Luciano Jq Teixeira, Diego Mn Silva, Fábio Luiz de Oliveira |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Espirito santo Soil Science Titratable acid Plant Science Horticulture instrumental coloration 01 natural sciences SB1-1110 0404 agricultural biotechnology Altitude Soluble solids sensorial traits Smallanthus sonchifolius Water content Mathematics biology Plant culture Sowing Yacón 04 agricultural and veterinary sciences post-harvest quality biology.organism_classification 040401 food science Chewiness 010606 plant biology & botany |
| Zdroj: | Horticultura Brasileira, Vol 36, Iss 2, Pp 199-204 (2018) Horticultura Brasileira v.36 n.2 2018 Horticultura Brasileira Associação Brasileira de Horticultura (ABH) instacron:ABH |
| ISSN: | 1806-9991 0102-0536 |
| DOI: | 10.1590/s0102-053620180209 |
| Popis: | The post-harvest quality of yacon tuberous roots produced at different altitudes and planting times were characterized in this study. The experiment was conducted in the South of Espírito Santo State in two locations, one at 837 m altitude and the other one at 113 m altitude. The experimental design, in each place, was randomized blocks with four replications, and the treatments consisted of three planting seasons: April (autumn), July (winter) and September (spring). After harvest of the tuberous roots, we evaluated pH, titratable total acidity, moisture content, soluble solids, reducing sugars, crude fiber and ash, as well as color, hardness (maximum force recorded in the first penetration or compression cycle) and chewiness index (energy required to chew food, given by gumminess x elasticity). Tuberous roots grown at 837 m altitude, independent of planting times, presented higher soluble solids content and lighter juice, conferring better quality. However, at 113 m altitude, from April to July, the roots showed better quality, since it presents lower hardness and lighter juice. |
| Databáze: | OpenAIRE |
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