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International Journal of Food Science and Technology

Thu, 04/25/2019 - 13:51
Light and wounding significantly increase the SGA content in potato tuber during storage. Importantly, they have synergistic effect on SGA content in tuber in this process. Summary Potato tubers contain undesirable steroidal glycoalkaloids (SGAs), which have evoked global concern in terms of feed and food safety due to their toxic effects in humans. The cultivar Unica was exposed to a...
Tue, 04/23/2019 - 11:53
High‐TB Pu‐erh tea made by a novel process was compared with commercial tea samples. All teas were free of aflatoxins, fumonisins, ochratoxin A, and viable microbes. Dietary intake of investigated trace elements was below the safe limits. The new tea was comparable to conventional Pu‐erh tea in appearance and taste. Summary Theabrownins (TB) are polymeric phenolic compounds associated with...
Tue, 04/23/2019 - 11:53
EBI could noticeably reduced the total microbial counts and resulted in significant changes in the integrity of cell membrane, genomic DNA and proteins in L. innocua. Summary As a non‐thermal sterilisation technology, electron beam irradiation (EBI) has attracted great interest for microbial inactivation in food preservation. This study aims to investigate the effects of EBI on membrane...
Thu, 04/18/2019 - 10:31
Pomegranate peel is rich in polyphenols which are known to have antibacterial and antifungal properties. Summary Pomegranate peel (PoP) is a byproduct of the fruit juice processing industry, comprising nearly 30–40% of fruit portion. PoP is rich in polyphenols (phenolic acids, tannins and flavonoids particularly anthocyanins) which are known to have diverse biological functions including...
Thu, 04/18/2019 - 10:31
The effect of pressure, extraction time and ethanol concentration on some bioactive compounds extraction from yellow prickly pear peels was measured. The ethanol concentration showed the highest impact, followed by high pressure and then by the extraction time. The models developed by RSM showed high correlations, good fitting and adequacy to describe the experimental data. Summary The main...
Thu, 04/18/2019 - 10:31
Application of orange lipases for plant oil biotransformation to increase biological activities. Summary The aim of this study was to show that abundant and inexpensive plant oils can be biotransformed to increase biological activity (antioxidant, antimicrobial and cytotoxicity) through hydrolysis reaction catalysed by lipases. We tested homemade and commercial lipases through the...
Thu, 04/18/2019 - 10:31
Graphical abstract of low‐salt solid‐state fermentation of Yunnan oil furu. Summary The effect of reducing salt on the microflora, enzymatic activity and structural, textural and sensory properties of Yunnan oil furu was studied. Oil furu with different salt content, including 11 (control), 9%, 7% and 5%, were prepared. The results showed that lower salt increased fungus and lactic acid...
Sat, 04/13/2019 - 04:52
The graphical abstract showed the research frame and main experimental results of our research. This project investigated the effect of RosA on AA formation and the kinetics, then analysed the intermediate products in the model systems to explore the possible pathways through which AA was reduced by RosA, and at last tested the inhibition effect of RosA on AA formation in potato crisps. Summary...
Tue, 04/02/2019 - 12:39
Selection of microbial strains for the production of fermented foods and beverages. Summary Fermentation has been employed as a traditional means of improving the shelf life and nutritional contents of foods, thus making fermented foods and beverages functional and therapeutic. Lactic acid bacteria (LAB) plays a major role in determining the health benefits of fermented milk and related...
Tue, 04/02/2019 - 12:19
This paper has been written to determine the combined effect of microwave and ultrasonication treatments on the physiochemical activities, bioactive compounds and microbial reduction on sugarcane juice during cold storage. Summary The main objective of this study was to investigate the combined effect of microwave (MW) treatment (2450 MHz for 120 s), ultrasonication (US) (24 KHz, 20 °C for...
Fri, 03/29/2019 - 09:54
The purpose of this study is to establish a rapid and accurate method based on multiplex polymerase chain reaction combined with suspension array xTAG (Flexible Sequence‐tagged, xTAG) technology to simultaneously detect Salmonella Typhimurium, Brucella spp., Bacillus cereus and Shigella spp. in raw milk. Summary The purpose of this study is to establish a rapid and accurate method based on...
Sun, 03/24/2019 - 12:06
Anti‐Listeria monocytogenes activity of heather extracts: growth inhibition, biofilm formation inhibition and susceptibility to adverse conditions increased. Summary In this work, heather and its flowers were studied regarding their antioxidant and antimicrobial activities. Plants were subjected to ultrasound‐assisted methanolic extraction followed by fractionation. A phytochemical...
Sun, 03/24/2019 - 12:06
Ethanolic coconut husk extract (ECHE) could be prepared using ethanol as the extracting solvent. The concentration of ethanol have a great impact on the antibacterial efficacy of ECHE. The ECHE extracted with 60% ethanol demonstrated bactericidal effect on the tested bacteria by causing cell wall damage, which could lead to cell death. Summary Antibacterial properties of ethanolic coconut...
Thu, 03/07/2019 - 08:30
Sensorially accepted concentrations of MPEO were evaluated as a single agent and in combination with MHT to cause a 5 log10 reduction in survival counts of E. coli O157:H7 and S. Enteritidis PT4 without affecting the physicochemical parameters of the caja, guava and mango juices. Summary This study determined the compromised acceptance threshold (CAT) and rejection threshold (RT) of Mentha...
Mon, 03/04/2019 - 09:51
The ginkgo biloba extract (GBE) nanoparticles were prepared by the liquid anti‐solvent precipitation (LASP) method to enhance the antioxidant activity, intestinal transmittance and oral bioavailability of GBE. Summary The ginkgo biloba extract (GBE) nanoparticles were successfully prepared by adopting the liquid anti‐solvent precipitation (LASP) method to enhance the antioxidant activity...
Fri, 03/01/2019 - 10:44
PEF resistance of S. Typhimurium was varied markedly at different growth temperatures due to the change of membrane fatty acid composition and fluidity Summary Effects of various growth temperatures on cell membrane fatty acid composition of Salmonella Typhimurium (S. Typhimurium) and the resistance to Pulsed Electric Fields (PEF) treatments, as well as PEF combining with mild‐thermal (35,...
Fri, 02/22/2019 - 14:57
Often antioxidant levels are reported in food and food products. However, much of the focus is often placed on the laboratory based assay. It is important to put into context the potential implications of antioxidant data on food processing, preservation and ultimately human health, not just assume that in vitro data immediately applies to food matrix and in vivo situations. Summary The use of...
Sun, 02/03/2019 - 11:25
Microencapsulated oils beads were developed. Antimicrobial activity of beads was analysed in volatile phase in order to apply in food packaging. Summary Chitosan–pectin hydrogel beads that trap and release the maximal amount of combined garlic and holy basil essential oils to inhibit food microorganisms were developed based on the central composite design, with chitosan (0.2–0.7% w/v), pectin (...
Sun, 02/03/2019 - 11:10
Rapid signal on authentication of horsemeat adulterated beef samples via functional hairpin probes based polymerase chain amplification. Summary Rapid authentication of meat adulteration is of great importance for food safety. A new FRET‐based self‐signal‐on fluorescent colorimetric PCR approach for rapid, sensitive and specific identification of horsemeat ingredient has been developed. A...
Sun, 01/20/2019 - 11:59
Using ozone to degrade pesticide residues in food has many technical advantages, but there are also some limitations to be considered. Summary In agriculture, pesticide residues have always posed a major safety hazard to human health. With the development of agricultural production and improvements in science and technology, additional methods for degradation of pesticide residues have...
Sun, 01/20/2019 - 11:59
Garlic powder was produced using a novel manufacturing process using high hydrostatic pressure, wet grinding, and freeze drying. Total phenolic content and antioxidant activities of the powder were improved, and it has less pungent flavor and improved microbiological safety. Summary The traditional method of manufacturing garlic powder (GP) that includes simple grinding of air‐dried garlic...
Sun, 01/20/2019 - 11:59
Effect of fermentation on mycotoxins. Summary Aflatoxin M1 (AFM1) and ochratoxin A (OTA) are two main mycotoxins in milk and dairy products. In the present work, the ability of four Lactobacillus strains (L. plantarum PTCC 1058, L. plantarum LP3, L. plantarum AF1 and L. plantarum LU5) to remove AFM1 and OTA in fermented cream was studied during 24 h fermentation. The antifungal activity of...
Sun, 01/20/2019 - 11:59
Commercial packaged fried foods were selected to determine quality parameters such as moisture content (MC), hardness (HN), acid value (AV), peroxide value (PV), carbonyl value (CV), dielectric constant (DC), fatty acid compositions (FAC), and acrylamide (AA) every 3 days by Schaal oven tests. The relationships of physicochemical indices in packaged fried foods were confirmed; the content of...
Wed, 01/16/2019 - 15:00
In‐shell pecans were hot water treated at 70 °C for 8.6 min or 80 °C for 6.6 min or 90 °C for 4.6 min and kernels were subsequently roasted. The consumer study showed a significant (P < 0.05) increase in color and aroma of hot water treated‐roasted pecans whereas, no significant difference on other sensory attributes as compared to the control (roasted pecans that were not hot water treated...
Wed, 02/21/2018 - 21:05
Summary This study investigated the effects of high-pressure processing (HPP) and thermal processing (TP) on the overall quality attributes of hazelnut milk. HPP achieved the same microbial safety as TP, and the pH, °Brix and sugar contents were maintained at the levels of fresh hazelnut milk. Although HPP caused colour changes, the ∆E was smaller than that of the TP sample. Increasing pressure...
Sun, 02/11/2018 - 22:55
Summary Food contamination by toxins (both mycotoxins and bacterial toxins) represents a great challenge for their implications on health. Toxins could be removed during production, but many times, they enter the gut and act on the host. To some extents, a benefit of probiotics could be the removal/neutralisation of harmful compounds in the gut with an indirect health effect on the host. Some...
Mon, 01/29/2018 - 22:55
Summary Buckwheat starch (BS) films containing zinc oxide nanoparticles (ZnO-N; 0%, 1.5%, 3% and 4.5%) were prepared, and their physical, optical and antimicrobial properties were examined. As ZnO-N content increased from 0% to 4.5%, TS increased from 14.99 to 19.09 MPa and E decreased from 25.60% to 20.65%. In addition, L* and a* values decreased, whereas b*, ΔE and opacity increased. Regarding...
Sat, 12/23/2017 - 02:05
Summary Increased consumption of produce by consumers has been attributed to perceived health benefits of postharvest produce. Pathogen control is crucial because periodic occurrences and contamination of tomato and leafy greens have exacerbated food safety risks for consumers. We investigated the effects of temperatures (5 and 25 °C), storage time (30 min and 24 h) for inactivation of Listeria...
Thu, 12/07/2017 - 23:36
Summary The aim of this study was to develop antimicrobial properties of gummy candies based on bovine colostrum (BC), essential oils (EOs), lactic acid bacteria (LAB) strains and their combinations. In addition, the heteropolysaccharide (agar), as a multifunctional polymer, was used for the antimicrobial candies preparation. The antimicrobial activities of BC, EOs (C. reticulata L., Eugenia...
Sun, 11/26/2017 - 23:41
Summary This study has developed a predictive model for the cross-contamination of pork by Listeria monocytogenes during bowl chopping. The transfer rates of L. monocytogenes were measured in sixteen chopping scenarios based on practical work. Meanwhile, contaminated bowl chopper was cleaned with either a dry rag (DR), warm water (WW) or 70% ethanol + water (EW), respectively. It was showed that...
Thu, 11/23/2017 - 02:40
Summary In this study, the antioxidant activities of blueberry anthocyanin extracts from ten blueberry varieties were evaluated based on the methods of scavenging activities for DPPH radicals, ABTS radicals, hydroxyl radicals and ferric reducing antioxidant power (FRAP) assay. Among the ten blueberry varieties, Polaris had the highest antioxidant abilities and the largest amounts of anthocyanins...
Tue, 11/21/2017 - 20:51
Summary Adhesion of foodborne pathogens to materials of industrial surfaces is an important step in their transmission through the food chain. Adhesion is also a prerequisite for bacterial colonisation within a host, to enable intracellular invasion. We define a strategy to reduce contamination and infection by Listeria monocytogenes, Campylobacter jejuni and Escherichia coli using an ethanol...
Sun, 10/29/2017 - 23:55
Summary Acrylamide in foods is declared as carcinogen. In the present work, the effect of enzymatic pretreatment and other parameters like enzyme concentration, frying conditions with respect to temperature and time, size of potato chips, and effect of sodium chloride and citric acid on mitigation of acrylamide were studied. The concentration of acrylamide in fried potatoes after the pretreatment...
Sat, 10/28/2017 - 03:35
Summary The effects of pulsed and continuous ultrasound treatment on microbiological and physiological quality of Mirabelle plum fruit were investigated. Freshly harvested Mirabelle plum was treated with 30-kHz pulsed and continuous ultrasound at 20 °C for 0, 15, 30, 45 and 60 min and subsequently stored at 4 °C for 10 days. The total count of bacteria, total fungi, decay index, titratable...
Mon, 10/23/2017 - 02:22
Summary Chicken bones are mostly discarded even though they contain a considerable amount of proteins, which would allow them to be applicable as a protein film source. In this study, chicken bone gelatine (CBG) films were prepared and characterised after the addition of cinnamon bark oil (CBO) to confer antimicrobial activity. The incorporation of 1% CBO increased the tensile strength of the CBG...
Tue, 10/17/2017 - 01:21
Summary Phages are potentially useful as antimicrobial agents in food-processing environments, provided they can remain active upon extended storage and in the presence of sanitisers. Survival of six phages lytic against enteropathogenic (EPEC) and shiga-toxigenic (STEC) Escherichia coli strains was assessed upon storage at 4 °C, −20 °C and −70 °C in phosphate-buffered-saline (PBS) and Tris-...
Mon, 09/11/2017 - 11:00
Summary Low molecular mass (MM) chitosan with high degree of deacetylation (DDA) has excellent bioactivity including antioxidant, antibacterial and encapsulation properties. In this work, to reduce the MM of chitosan, microwave-assisted heating treatment (MAHT) conditions were investigated using three factors at three levels Box-Behnken design (BBD). Microwave heating (MH) time, H2O2...
Fri, 09/08/2017 - 06:46
Summary This study investigated the effects of dietary fibres on gut bacterial abundance and metabolic activity in rats fed short-term. Faecal samples from rats fed for 7 days showed differences in the effects of dietary fibres on gut bacterial populations. Broccoli fibre, inulin, potato fibre and potato resistant starch significantly increased the faecal Bacteroides-Prevotella-Porphyromonas...
Fri, 09/08/2017 - 06:10
Summary In this present work, to minimise the risk of contamination by biofilm of Staphylococcus aureus (S. aureus), D-amino acid (D-AA) and nutmeg essential oil (NEO) were used to synergistically eliminate S. aureus biofilm formation. Chitosan nanoparticles (CNPs) were introduced to encapsulate D-Pro, D-Phe and NEO for getting better chemical stability during processing and storage. The optimal...
Wed, 09/06/2017 - 12:01
Summary Antioxidants occurring naturally are much sought-after for their safety of use for human nutrition and strong preservative properties. The study was performed to determine the antioxidant potential of sour cherry extract and its effect (equivalent of 20 mg and 40 mg GAE kg−1) on the quality of ground pork patties during 8-day storage. The patties were analysed for antioxidant capacity,...
Thu, 08/03/2017 - 09:25
Summary Bacillus spores are concerns for their resistance to heat, high pressure processing (HPP), and disinfectants. We examined the effects of HPP and slightly acidic electrolysed water (SAEW) on inactivation of B. cereus spores. Spores' suspensions were prepared with 2-(N-morpholino) ethanesulfonic acid (MES) buffer or SAEW with available chlorine content (ACC) of 24, 35, 44 or 55 mg L−1, and...
Mon, 07/24/2017 - 01:10
Summary The inactivation mechanism of PMF on Listeria grayi (L. grayi) was investigated through the analysis of biological effects as well as the monitoring of morphology, membrane permeability and intracellular proteins of cells. Under the optimal inactivation conditions of PMF (2.5 T and 25 pulses), the analysis of transmission electron microscopy (TEM) and laser scanning confocal microscopy (...
Sun, 06/18/2017 - 13:27
Summary Influences of pretreatment methods (washing, blanching, soaking in ethanol), drying methods (hot air-drying, infrared-drying, microwave-drying) and drying temperature on selected characteristics of dietary fibre powder from orange pulp residues were investigated. Pretreatments improved the hydration properties, oil-holding capacity and glucose dialysis retardation index, but led to losses...
Sun, 06/18/2017 - 13:26
Summary Nonthermal plasma (NTP) is defined in terms of partly ionised gas which overall temperature is quite low because the stored energy is mostly in free electrons. Applications of NTP have been expanded to new areas of food applications such as the microbial inactivation and also the elimination of pesticide and toxic chemical residues in food such as fruits and vegetables while nutritional...
Sun, 06/18/2017 - 13:26
Summary The purpose of this study was to evaluate the activity of a novel antimicrobial substance lauric arginate ester (LAE) against selected foodborne pathogens (Escherichia coli O157:H7, Listeria monocytogenes and Salmonella spp.) in biofilm. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) were determined and showed that LAE exhibits a strong antimicrobial...
Fri, 06/16/2017 - 02:35
Summary Pomegranate pomace extract (PPE) was used as a substitute to chlorinated water for washing of fresh produce. PPE contained punicalagins and ellagic acids, and it had a good inhibitory effect against Listeria monocytogenes based on the results of disc diffusion test and time-kill assay. Red chard, beet, chicon and red mustard leaves were treated with 7 mg mL−1 PPE as a washing solution to...
Wed, 05/17/2017 - 04:40
Abstract Twenty-five strains, isolated from raw, non-pasteurised, organic whey samples, were identified phenotypically and genotypically. Biochemical tests were performed, and enzyme profiles, antibiotic resistance and antimicrobial properties were investigated. Sixteen strains were identified as genus Lactobacillus. Based on 16S rDNA gene sequence, the strains were identified as Lb. plantarum...
Tue, 05/16/2017 - 02:40
Summary Microemulsion nanofilms based on fish skin gelatine (FSG) and 3% (w/w, gelatine) ZnO nanoparticles (ZnONP) incorporated with ginger essential oil (GEO) at different concentration (10%, 20%, 40%, 80%, w/w, gelatine) were developed and characterised. Film thickness and elongation increased, while film tensile strength and gel strength decreased as GEO level increased (P < 0.05). The...
Mon, 05/08/2017 - 07:56
Summary To ensure the safety and quality of food ingredients, especially meat and dairy products, a high-throughput, rapid and sensitive method to detect Listeria monocytogenes (LM) is always on a high demand. In this work, a specific induction method to enrich and detect LM based on fluorescence immunochromatographic assay (FICA) combined with immunomagnetic separation (IMS) techniques has been...
Thu, 04/27/2017 - 00:11
Abstract A Lactobacillus plantarum strain was used for the production of rye, wheat, barley, and oat sourdoughs, and the influence of different sourdoughs on mixed rye–wheat bread quality parameters and acrylamide formation was evaluated. L. plantarum LUHS135 demonstrated versatile carbohydrate metabolism, good growth and acidification rates, and the ability to excrete amylolytic and proteolytic...

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