The composition of a heavy tar can still be divided into two fractions, the light organic components (LC) and heavy organic components (HC). The HC is hard to be processed into liquid fuel due to its high viscosity and coke formation tendency. In this work, the pyrolysis of HC is tested for improving the yield of LC product from HC pyrolysis with a...
The composition of a heavy tar can still be divided into two fractions, the light organic components (LC) and heavy organic components (HC). The HC is hard to be processed into liquid fuel due to its high viscosity and coke formation tendency. In this work, the pyrolysis of HC is tested for improving the yield of LC product from HC pyrolysis with a...
Okra (Abelmoschus esculentus) is difficult to preserve after harvest. If not properly dried, because of its high moisture content, which will reduce the product value of okra and the value of nutrition. In this study, the effects of vacuum freeze-drying (VFD), ultrasonic pretreatment assisted vacuum drying (UPVD), and ultrasonic combined vacuum dry...
Okra (Abelmoschus esculentus) is difficult to preserve after harvest. If not properly dried, because of its high moisture content, which will reduce the product value of okra and the value of nutrition. In this study, the effects of vacuum freeze-drying (VFD), ultrasonic pretreatment assisted vacuum drying (UPVD), and ultrasonic combined vacuum dry...
beta-poly(L-malic acid) (PMLA) production by Aureobasidium pullulans ipe-1 using Jerusalem artichoke tuber (JA) hydrolysate as a low cost carbon source was developed. The PMLA production was favored by JA pretreated with 0.06 M nitric acid without adding exogenous nitrogen sources into fermentation medium. With an initial 130 g/L total sugar of the...
Ultrasonic pretreatment has been widely studied in food dehydration and drying utilization, which have been chiefly used in liquid medium. The sample slices of okra were performed using ultrasonic combined vacuum pretreatment (UVP) prior to convective drying. The effects of UVP on drying efficiency and physicochemical properties of okra were studie...
A key component in the atmospheric leaching of metal sulfides is the oxidation of sulfide to either elemental sulfur or hexavalent sulfur. The final oxidation state of sulfur significantly influences the economic viability of a leaching process because of its effects on oxygen consumption, acid generation, and surface passivation. Thus, in the proc...
beta-poly(L-malic acid) (PMLA) production by Aureobasidium pullulans ipe-1 using Jerusalem artichoke tuber (JA) hydrolysate as a low cost carbon source was developed. The PMLA production was favored by JA pretreated with 0.06 M nitric acid without adding exogenous nitrogen sources into fermentation medium. With an initial 130 g/L total sugar of the...
A key component in the atmospheric leaching of metal sulfides is the oxidation of sulfide to either elemental sulfur or hexavalent sulfur. The final oxidation state of sulfur significantly influences the economic viability of a leaching process because of its effects on oxygen consumption, acid generation, and surface passivation. Thus, in the proc...
Ultrasonic pretreatment has been widely studied in food dehydration and drying utilization, which have been chiefly used in liquid medium. The sample slices of okra were performed using ultrasonic combined vacuum pretreatment (UVP) prior to convective drying. The effects of UVP on drying efficiency and physicochemical properties of okra were studie...
