首页期刊导航|Food and Bioproducts Processing. Transactions of the Institution of Chemical Engineers, Part C
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Food and Bioproducts Processing. Transactions of the Institution of Chemical Engineers, Part C
Institution of Chemical Engineers
Institution of Chemical Engineers
0960-3085
Food and Bioproducts Processing. Transactions of the Institution of Chemical Engineers, Part C/Journal Food and Bioproducts Processing. Transactions of the Institution of Chemical Engineers, Part C
查看更多>>摘要：? 2022 Institution of Chemical EngineersCellulose fiber based molded pulp packaging is a sustainable solution to the persistent plastic crisis. This study utilized apple pomace (AP) as a renewable source of fibers and cardboard fibers (CF) as reinforcement material to create molded pulp biocomposites (boards) at AP:CF ratio of 2:1 in 3% solid pulp. For improving water resistance of pomace board, two approaches were employed: 1) incorporating rhubarb pomace (RP), chitosan, and glycerol into pulp formulation, and 2) applying heat resistant, superhydrophobic coatings on the board surface. In addition, composition, water retention value, and morphology of pomace, cardboard and newspaper fibers were evaluated for understanding their interactions and effect on water retention of fiber pulp and quality of derived boards. Response surface methodology was used to optimize pulp formulations based on high water resistance and low board deformation after drying. The optimum pulp formulation consisted of 26.9% w/w of RP, 0.039% w/v of glycerol, and 15.7% of w/w chitosan in the 3% solid pulp. The superhydrophobic coating further enhanced the water resistance of the board. The developed pomace boards were compostable in soil. This study brought new insights for using pomace as alternative fiber to produce water resistant and compostable packaging for various applications.
查看更多>>摘要：? 2022 Institution of Chemical EngineersFree fatty acid (FFA) presence in vegetable oils (VO) promotes unwanted organoleptic characteristics. Its traditional removal is carried out by steam distillation (deodorization). However, the high temperature of this process promotes the formation of toxic components such as glycidol esters (GE) and 3-monochloropropane-1,2-diol (3-MCPD). FFA extraction by solvents is an alternative refining process at low temperatures which preserves natural phytonutrients that are thermically destroyed or distilled in deodorization. In this work, a model to predict continuous co-current FFA extraction with a liquid–liquid film contactor (LLFC) using ethanol as a solvent at low temperature (<80 °C) was developed and experimentally validated. This model includes the prediction of the FFA mass transfer from the oil-rich phase to the interface. Experimental validation also assessed the effects of flow rate (0.5–1.5 kg/h), ethanol to oil mass flow rate (1–2), FFA initial concentration (2–4 wt.%), and LLFC stages employed on FFA removal. At the best operational conditions experimentally evaluated, it was possible to reduce the FFA content from 4 wt.% to 0.08 wt.%. The mathematical model shows an approximate description of the LLFC behavior and mass transfer effects that can be used for the scale-up of the technology.
查看更多>>摘要：? 2022 The Institution of Chemical EngineersPolylactic acid (PLA) is a sustainable material for food packaging applications. The incorporation of cinnamic acid (CA) into PLA films was studied to obtain antimicrobial films, using two different techniques for film production, namely casting and thermal processing (TP). Whereas CA could be successfully incorporated at 5 and 10% w/w into TP films, only 3% w/w could be used in cast films without observing any crystallisation of CA. The acid reduced the glass transition temperature in TP films, while also improving their thermal resistance. Cast films retained a little proportion of the casting solvent which contributed to their plasticisation. The processing method greatly affected the mechanical properties of the films, with the cast films being significantly more plastic and stretchable. CA reduced the film's stiffness and resistance to break and improved their water vapour and oxygen barrier capacity. Antibacterial assays with Listeria innocua did not show significant growth inhibition for any film, but the observed inhibition could be related to the acid concentration. This suggested that only a small amount of acid near the film surface could be released. Further research to promote the superficial concentration of cinnamic acid into PLA films is required to obtain active materials.
查看更多>>摘要：? 2022 Institution of Chemical EngineersThis article proposes the application of multiobjective decision making strategy for selective albumin extraction by Pareto's domain determination and ranking by Decision Engineering tool based on the Rough Set approach. In this study, both competing process performance indicators of rapeseed albumin extraction and quality of the solid residue remaining from this process were considered for an overall valorization of the rapeseed cold-pressed meal. The impact of extraction pH and NaCl concentration on three process performance indicators including the albumin extraction yield, the albumin content in the extract, and the phytic acid content in the remaining solid residue was studied. The results of the optimization approach showed that the high selectivity of rapeseed albumin extraction was to the detriment of the productivity of the process and the quality of the solid residue. The optimal conditions for selective rapeseed albumin extraction while producing a high-quality solid residue were identified at pH 2.0 and 0.11 mol L?1 of NaCl concentration. Upon these conditions, good albumin extraction yield was achieved (55.5%) with a high selectivity (97.9% of albumins in the extract). The isolate obtained after purification exhibited suitable color, high solubility, promising emulsifying properties and good foaming properties, which is of interest for food applications. Besides, the identifying extraction conditions yielded a protein-rich solid residue (35.6% on dry matter basis) with reduced phytic acid content (3.6% on dry matter basis), which can be used for feed applications.
查看更多>>摘要：? 2022 Institution of Chemical EngineersXylitol, a commodity chemical, is widely used in nutraceutical and pharmaceutical formulations. Microbial xylitol production is a promising alternative to mitigate current industrial practice issues and offers an environment-friendly sustainable conversion route. This study demonstrates a bioprocess for xylitol production from corncob using a mesophilic yeast Pichia caribbica. Corncob was hydrolyzed by dilute acid and steam explosion to recover fermentable xylose and used as the feed for xylitol production. Activated carbon treatment (3% w/v) completely removed the biomass-derived inhibitors furfural and hydroxymethyl furfural from the liquid hydrolysate. The fermenting yeast Pichia caribbica produced 124.1 ± 0.45 g/L xylitol from the detoxified and concentrated corncob hydrolysate with a high yield of 0.80 ± 0.02 g/g. The crystallized xylitol with 96.5% purity demonstrated no harmful effects on the cell line used as a control for the in-vitro toxicity studies. This proof of concept can be applied to help scale up for bio-refinery-based large-scale production of xylitol from corncob biomass.
查看更多>>摘要：? 2022 Institution of Chemical EngineersThe effects of mild pretreatment and fungal fermentation on the nutritional characteristics of hexane extracted canola meal (HECM) was examined. HECM is a by-product of canola oil extraction process and has restricted use in animal diets due to presence of high levels of antinutritional factors (ANFs) and limited digestibility resulting in low nutrient availability. In this study, HECM was washed with water at different solid loading rates (SLR) to remove soluble ANFs. The wash process removed significant amounts of soluble carbohydrate and glucosinolates from HECM, yielding a meal with higher levels of proteins and amino acids when compared to raw HECM. The digestibility test conducted on rainbow trout with the feed that had 30% of fish meal replaced with washed HECM showed slight improvement with no statistical significance in protein digestibility when compared to HECM. Fermentation of washed HECM and raw HECM with mono- and co-cultures of Aureobasidium pullulans, Neurospora crassa and Aspergillus niger resulted in higher protein and amino acid content when compared to the uninoculated controls. Additionally, different strains under mono- and co-culture fermentations exhibited varied reduction in the ANFs. Overall, these findings suggested that pretreatment with mild water washing and/or fermentation enhances the nutritional value of HECM.
查看更多>>摘要：? 2022 Institution of Chemical Engineers (IChemE)Ageing of deposits arising from the processing of protein-containing fluids creates issues in cleaning that require extensive research. Differences in temperature and fouling time lead to differences in the fouling materials, while the accompanying changes in mechanical properties create challenges in predicting optimal cleaning strategies. This work analysed the strength of whey protein-based deposits by investigating the mechanical properties of homogeneous model fouling layers produced in a drying oven at defined temperatures and comparing them with thermally characterized, heterogeneous fouling layers generated in a laminar-operated flow channel. Both deposit types were analysed with a commercial texture analyser, and force-displacement curves were generated to characterize the mechanisms that lead to layer solidification. The reaction kinetics of the temperature-dependant transformation process in the fouling material was then established based on an Arrhenius approach. A height-dependent strength gradient was identified in a temperature range from 75 °C to 110 °C. The knowledge derived here regarding the limiting temperatures, as well as the identified reaction rate constants and activation energies, can help to improve the removal of fouling deposits during cleaning.
查看更多>>摘要：? 2022 Institution of Chemical EngineersGravitational (GC) and microwave-assisted (MWC) block freeze cryoconcentration was carried out to obtain extracts rich in phenolic compounds from beet leaves extract. The performance of both processes was evaluated and cryoconcentrated and ice fractions were analyzed for physicochemical properties, bioactive compounds content, and in vitro gastrointestinal simulation. After four concentration cycles using GC, the total and soluble solids were approximately 6 and 5 times higher the initial condition, whilst MWC allowed to 4 and 4.5, respectively. GC and MWC presented an increase in the bioactive compound concentration, reaching an efficiency process of 90% (stage 4) and 80% (stage 3), respectively. Consequently an increase in the antioxidant activity was observed. Comparing GC and MWC was observed a reduction in the processing time from several hours (GC) to only a few minutes (MWC), besides the high retention of bioactive compounds, as well as notabl values in terms of solutes and process parameter.
查看更多>>摘要：? 2022 Institution of Chemical Engineers (IChemE)The effects of frying oil degradation on the oil absorption behavior of fried products remain ambiguous. This study aimed to clarify the effects of frying oil degradation on the oil absorption behavior and micromorphology changes of fried potato strips. Results showed during prolonged frying, oil degradation had a significant impact on the oil absorption and oil distribution of fried potato strips. Frying oil degradation caused the increase of surface oil content and the decrease of surface penetration oil content. The results of traditional methods, low-field nuclear magnetic resonance (LF NMR) technology and confocal laser scanning microscopy (CLSM) together confirmed the changes of oil absorption. CLSM 2D imaging showed starch in potato strips was more prone to combine with degraded oil. Scanning electron microscope and CLSM 3D imaging showed the surface micromorphology of strips fried by degraded oil suffered severe damage. The degradation degree of frying oil can be evaluated by using LF NMR. This paper may provide evidence for the effect of frying oil degradation on the oil absorption of fried foods.
查看更多>>摘要：? 2022 Institution of Chemical EngineersThe aim of this work was to evaluate the production of isomalto–oligosaccharides (IMO) from rejected unripe plantain fruits (Musa AAB Simmonds) on a laboratory scale and assess IMO syrup production for a large scale through process simulation. The enzymatic activity of the commercial preparation of α-glucosidase was 936.23 ± 0.71 U/mL. The Michaelis–Menten model was used to adjust the experimental data, and its kinetic parameters were used in the simulation. Maximum IMO production from a mixture of 18% plantain flour with a starch content of 84% was obtained for a reaction of 6 h in the transglycosylation step (29 ± 3 g/L isomaltotetraose and 8 ± 3 g/L isomaltopentaose). The best scenario to produce IMO showed a net present value of $ 459,000. Results suggest that IMO syrup production for a large scale, including an integrated production of single cell protein considering a batch size greater than 11,126 kg rejected fruits is feasible, if the production costs associated with labor are reduced and the selling price of the products increases according to the variation of the market. This work demonstrated that the rejected plantain pulp exhibits high potential as an ingredient to produce prebiotic compounds such as IMO.
NSTL
Elsevier