Effect of Sowing Date on Yield and Physicochemical Properties of Medicinal Castor Bean Plant oil (Ricinus communis L.)

علوم باغبانی

Article 13, Volume 26, Issue 3, September 2012   

Document Type: Research Article

DOI: 10.22067/jhorts4.v0i0.15220

Authors

Nasrin Farhadi^* ; Mohammad Kazem Souri; Abolfazl Alirezalu; Hossein Rabbi Angoorani

Tabriz University

Abstract

Castor oil due to extraordinary physicochemical properties has numerous applications in pharmaceutical, chemical, hygienic, biodiesel and nowadays in food industries. During plant growth and development, as well as during postharvest and processing, different factors may affect caster oil properties. This study was conducted to evaluate oil content and physiochemical properties under different sowing dates under climatic conditions of Tehran. The highest seed yield (1590.67 kg ha-1) and oil yield (774.43 kg ha-1) were obtained from 5th April Sowing date, that had significant difference with other sowing dates. In analyzed samples oil content were (%34.45-49/97), moisture content (%0.97-2.12), refractive index (1.470-1.473), chlorophyll content (0.26-0.40 mg Pheophytin/kg oil), acid value (0.28-0.62mg NaOH/g oil), peroxide value (0 meq O2/kg oil), soponification value (165.62-181.34 mg KOH/g oil) and iodine value (82.43-89.22 g I2/100 g oil). The results revealed significant differences for moisture and chlorophyll content, acid value (p

Keywords

Castor bean; Sowing date; Oil; Physicochemical properties; Ricinoleic acid