Supercritical fluid and pressurized liquid extractions of phytonutrients from passion fruit by-products: Economic evaluation of sequential multi-stage and single-stage processes

Ionic liquids-based aqueous two-phase extraction (ILs-ATPE) offers an alternative approach to the extraction of tetracycline (TC) through their partitioning between two phases. Single-stage and multi-stage strategies have been evaluated and compared for the purification of TC using ATPE composed of 1-butyl-3-methylimidazolium halide ([Bmim]X(X=Cl,Br)) and K2HPO4. The influence factors on single-stage extraction behavior of TC were optimized systematically, including the pH value, tie line length, and volume ratio. The optimal extraction efficiency of TC could reach above 95% when the volume ratio is higher than 1.5 and the tie line length is 30.52%. The multi-stage ATPE was also investigated by simulating a three-stage crosscurrent operation in test tubes. According to the TC isotherm curve and respective McCabe?Thiele diagrams, a predicted optimized scheme of the countercurrent multi-stage ATPE was determined. TC can be purified in the IL-rich top phase with a final extraction efficiency of 99% and a final TC concentration of 0.25 mg/mL, if a three- -stage [Bmim]Cl-K2HPO4 ATPE with volume ratio of 0.5 and tie line length of 30.52% was employed. Thus, the multi-stage extraction with small volume ratio is necessary to achieve a higher recovery yield, resulting in the reduction of the IL consumption.

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Passion Fruit By-Products, Nutritive Values and Utility of Passion Fruit By-Products

Journal of Agricultural and Food Chemistry ◽

10.1021/jf60083a011 ◽

1958 ◽

Vol 6 (1) ◽

pp. 54-57 ◽

Cited By ~ 11

Author(s):

K. K. Otagaki ◽

Hiromu Matsumoto

Keyword(s):

Passion Fruit ◽

Nutritive Values ◽

By Products

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Milling technological experiments to reduce Fusarium toxin contamination in wheat

Acta Universitatis Sapientiae Alimentaria ◽

10.1515/ausal-2015-0004 ◽

2015 ◽

Vol 8 (1) ◽

pp. 55-62

Author(s):

A. Véha ◽

P. Szabó ◽

T. Bartók ◽

E. Gyimes

Keyword(s):

Winter Wheat ◽

Mass Loss ◽

Milling Process ◽

Careful Consideration ◽

Fusarium Toxin ◽

Toxin Content ◽

Multi Stage ◽

Public Consumption ◽

By Products

Abstract We examine 4 different DON-toxin-containing (0.74 - 1.15 - 1.19 - 2.14 mg/kg) winter wheat samples: they were debranned and undebranned, and we investigated the flour’s and the by-products’ (coarse, fine bran) toxin content changes. SATAKE lab-debranner was used for debranning and BRABENDER lab-mill for the milling process. Without debranning, two sample flours were above the DON toxin limit (0.75 mg/kg), which are waste. By minimum debranning (and minimum debranning mass loss; 6-8%), our experience with whole flour is that the multi-stage debranning measurement significantly reduces the content of the flour’s DON toxin, while the milling by-products, only after careful consideration and DON toxin measurements, may be produced for public consumption and for feeding.

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Mean Sojourn Time in Multi Stage Fork-Join Network

International Journal of Operations Research and Information Systems ◽

10.4018/ijoris.2015070104 ◽

2015 ◽

Vol 6 (3) ◽

pp. 80-99 ◽

Cited By ~ 3

Author(s):

Yonit Barron

Keyword(s):

Supply Chains ◽

Sojourn Time ◽

Computer Processing ◽

Single Stage ◽

Assembly Systems ◽

Parallel Tasks ◽

Multi Stage ◽

Stage System ◽

Major Factors ◽

Performance Behavior

Fork-Join queue networks (F-J) have received increasing attention during the last Decade, due to their ability to model parallel and distributed computer processing, supply chains and assembly systems. However, most research is focused on a single stage processing, and only scant work exists on F-J with two or more stages. In this paper, the author investigates (through simulation) the performance behavior of a multi-stage system; in particular, the performance of a synchronized system is compared to an unsynchronized system regarding three major factors: (1) the number of parallel tasks; (2) the number of serial stages and (3) the utilization.

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