Enhancement of Oil Extraction from Sumac Fruit using Steam‐Explosion Pretreatment

Abstract

Steam explosion, in which materials are crushed through rapid decompression after high-pressure steaming, has been widely used for biomass pretreatment. In this study, we used steam-explosion pretreatment (SEP) for oil extraction from sumac fruit. SEP reduced particle size and formed fissures and micropores on the fruit. The kinetics of the extraction process indicates that under optimal conditions (steam pressure 1.5 MPa, residence time 3 min), the oil yield at equilibrium increased to 16.04%, approximately fourfold higher than that of the raw sample. The mass transfer coefficient of the oil extraction decreased as a result of SEP. In addition, the acidity of the extracted oil decreased and peroxide value increased in the steam-exploded sample compared with that of the raw material. Few changes in fatty acid composition were observed, with low palmitic acid content and high linoleic acid composition. These results suggest that SEP improved the yield of oil extraction from sumac fruit and affected oil quality.

Efficient and eco-friendly extraction of corn germ oil using aqueous ethanol solution assisted by steam explosion

“…The loss of free oil was likely to blame to protein degradation. Apart from steam pressure, residence time was another main parameter of steam explosion (Chen and Chen 2011). As shown in Fig.…”

“…4(b), the free oil yield showed a peak at 30 s, after which it decreased. Residence time would affect the permeation of steam (Chen and Chen 2011). Therefore, appropriate resident time could strengthen the performance of steam explosion treatment, destroy cell wall and disconnected complex body.…”

“…Among these new technologies, steam explosion is an energy-saving and non-polluting treatment (Chen and Chen 2011). Steam explosion is the most commonly used pretreatment method for lignocellulosic materials (Chen and Chen 2011), which could be performed continuously on a large scale.…”

“…Among these new technologies, steam explosion is an energy-saving and non-polluting treatment (Chen and Chen 2011). Steam explosion is the most commonly used pretreatment method for lignocellulosic materials (Chen and Chen 2011), which could be performed continuously on a large scale. This method is based on highpressure saturated steam and forcing steam into cells of material, followed by rapidly releasing the pressure to atmosphere in an explosive decompression (Zoulikha et al 2015).…”

Application of steam explosion in oil extraction of camellia seed (Camellia oleifera Abel.) and evaluation of its physicochemical properties, fatty acid, and antioxidant activities

“…The lower acidity of the camellia oil in the steam‐exploded sample may be due to the short retention time and evaporation of free fatty acids in the oil at the moment of explosion. Acid value of steam‐exploded sumac fruit also decreased with corresponding pressure 1.3–1.5 MPa (Chen & Chen, 2011b). And, Timilsena, Vongsvivut, Adhikari, and Adhikari () also reported that the low acid and peroxide value indicated that chia seed oil embodied lower quantities of oxidation by‐products and free fatty acids including hydroperoxides and aldehydes.…”