𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Supercritical carbon dioxide extraction of oil and α-tocopherol from almond seeds

✍ Scribed by Lucia Leo; Leonardo Rescio; Loredana Ciurlia; Giuseppe Zacheo

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
140 KB
Volume
85
Category
Article
ISSN
0022-5142

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The objective of this study was to extract oil and tocopherols from almond seeds using supercritical carbon dioxide and to compare this extraction with a traditional solvent method. Oil and tocopherol extraction rates were determined as functions of the pressure (350–550 bar), temperature (35–50 °C) and CO~2~ flow rate (10–30 kg h^−1^), using a 10‐l vessel. The effects of matrix particle size on extraction yield were also studied and it was demonstrated that extraction yield is greatly influenced by particle size. Maximum recovery was obtained in the first 2–3 h of extraction at a pressure of 420 bar, a temperature of 50 °C and a flow rate of 30 kg h^−1^ CO~2~. These results suggest that the elevated initial oil and tochopherol solubility is related to the increased proportion of fatty acids in the initial extract. The results were compared with those obtained when hexane/methanol was used as a solvent. Copyright © 2005 Society of Chemical Industry

📜 SIMILAR VOLUMES

Supercritical carbon dioxide extraction
Supercritical carbon dioxide extraction of cumin seeds (Cuminum cyminum L.)
✍ Mohammad H. Eikani; Iraj Goodarznia; Mehdi Mirza 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 83 KB 👁 2 views

A pilot plant was designed and used to extract cumin seeds (Cuminum cyminum L.) using supercritical carbon dioxide at 408C and 100 bar. The extracts obtained were compared with cumin essential oil obtained by conventional steam distillation, using GC±MS. The analyses show that valuable components ar

Supercritical carbon dioxide extraction
Supercritical carbon dioxide extraction of okra (Hibiscus esculentus L) seeds
✍ Csaba D András; Béla Simándi; Ferenc Örsi; Charalambos Lambrou; Doukeni Missopol 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 177 KB

## Abstract Pilot‐scale supercritical fluid extraction of okra seeds was carried out, using carbon dioxide as solvent, at temperatures of 40, 50 and 60 °C and pressures of 150, 300 and 450 bar. Laboratory‐scale Soxhlet extraction of the ground seeds was carried out with ethanol and n‐hexane. The yi

Supercritical fluid extraction of oil an
Supercritical fluid extraction of oil and triterpenoids from Neem seeds
✍ Shaun Johnson; E. David Morgan 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 273 KB 👁 2 views

The selective extraction of nimbin, salannin, azadirachtin and oil from Neem seeds, using supercritical carbon dioxide and supercritical carbon dioxide:methanol, has been investigated using various conditions. Extraction for 30 min with 100% carbon dioxide using a capillary restrictor to maintain th