Guthrienavarro1580
Especially after HPH treatment at 60 MPa, myofibrillar protein was almost dissolved in low salt media (solubility 91.86%) with 4.92 fold for EAI and 3.52 fold for FC. But there was little variation in emulsifying and foaming stabilities. These results suggested that HPH treatment has interesting potential to induce the dissociation and unfolding of myofibrillar protein in low salt media, therefore improving its interfacial properties. PRACTICAL APPLICATION Carp myofibrillar protein was treated by high pressure homogenization (HPH). Aggregates of myofibrillar protein were disrupted into smaller size form. Conformation of myofibrillar protein was unfolded into open and loose structure. Emulsifying and foaming capacities of myofibrillar protein were improved. HPH treatment modified the structure and interfacial properties of myofibrillar protein.The changes of sensory and biochemical characteristics on the fresh and frozen-thawed scallop adductor muscle during storage at 4°C were discussed in this study. ABT-199 The Quality Index Method (QIM) scheme for evaluating scallop adductor muscle as raw materials for sashimi was proposed for the first time. The results of sensory evaluation showed that frozen-thawed scallop adductor muscle within zero to one day of refrigeration can be happily accepted by consumers, indicating the superiority of freezing for long-distance transportation, although the triangle test confirmed that there are still sensorial differences between fresh and frozen-thawed scallop adductor muscle. The microscopic observation of myofibrils extracted from scallop adductor muscle suggested that the myofibrillar protein which constitutes myofibrils has suffered some extent change due to freezing and thawing, even though the head region of myosin remained stable judging by the fact that there was no significant difference in Ca2+ -ATPase activity (p > 0.05). The changes of adenosine triphosphate (ATP) and its related compounds, and pH value during storage can be regarded as indicators to differentiate fresh and frozen-thawed scallop adductor muscle. The changes of Mg2+ -ATPase activity indicated that the interaction between myosin and actin was weakened by the freezing and thawing process. Practical Application The QIM scheme can be used to evaluate the scallop adductor muscle as raw materials for sashimi. The mechanism of quality changes in the frozen-thawed scallop adductor muscle was discussed in combination with the destruction of myofibrils, ATP degradation and the decrease of pH value. This study has positive significance for improving the quality of frozen-thawed scallop adductor muscle by combining the changes of sensory and biochemical characteristics.High-temperature treatment of fruit is a developing way of decreasing nutrient loss and preventing decay. Its effect on calamansi (Citrus microcarpa) has not yet been reported. This study aims to study the effects of high-temperature treatment via dielectric properties. The results show that high-temperature treatment of calamansi suppresses the dielectric constant between 200 MHz and 20 GHz and alters loss factor between 200 MHz and 10 GHz. Storage at room temperature can affect loss factor between 4.5 and 10 GHz. These results may indicate that the dehydration process first affects the loss factor from 4.5 to 10 GHz, and then from 200 MHz to 4.5 GHz. This study may be favorable for evaluating calamansi's quality during storage and transportation. Moreover, the loss factor under 10 GHz is promising as an index for monitoring the water deficit and for assessing the adopted pre-treatment on calamansi. PRACTICAL APPLICATION The quality inspector can use nondestructive examination ways to measure the dielectric property for evaluating Citrus microcarpa's quality and storage time after harvest. Moreover, the adopted pre-treatment may be speculated.Risk-based monitoring programs are increasingly applied for cost-effective monitoring of food safety. Such programs ideally consist of three steps risk-ranking, risk-based inspections, and cost-effective monitoring. Various methods have been described to perform the first step of risk-based monitoring. However, once the risk-ranking has been completed, identifying the hazard-food combinations to monitor, the frequency of inspection needs to be established based on a prioritization of food business operators (FBOs). The aim of this paper is to provide an overview of methods available for risk-based inspections. Literature shows that FBO's food safety compliance can be assessed based on company size, historical monitoring data, and socio-economic factors influencing compliance behavior. Non-compliance can either be intentional or unintentional. The latter can be assessed by evaluating the food safety culture of a company. Various models-ranging from qualitative (e.g., focus groups) to quantitative (e.g., scoring)-can be used for this purpose. These models usually include an evaluation of the organizational structure (e.g., management control, communication, commitment), the technical food safety environment (e.g., hygienic design, zoning), and employee characteristics (e.g., knowledge, risk awareness). Intentional non-compliance can be assessed using food fraud vulnerability tools. These tools incorporate factors influencing the likelihood of food fraud at the company, that is, opportunity, motivation, and (lack of) control measures. The literature indicates that either self-assessment tools or risk matrices are applied. There is no global consensus on the methods to apply for risk-based inspections. Depending on time and budget available as well as preferred output, one of the presented methods may be applied for prioritizing FBOs.Yellow cassava is an affordable starting material to design a healthy food, having high β-carotene content. White and yellow cassava functional pasta were fortified with 50 g/kg (w/w) amaranth dry leaf powder and analyzed to evaluate the impact of cultivar difference, processing, and addition of amaranth leaf powder on the physicochemical, functional, pasting, antioxidant, and cooking properties of the white and yellow cassava pasta samples. Significant differences were observed among the cassava pasta samples. Leaf powder addition significantly enhanced the dietary fiber (7.6-9.1 g/100 g) and protein (1.41-4.69 g/100 g) contents of formulated cassava pasta. Yellow cassava-amaranth pasta had higher β-carotene (2.07 µg/g), iron (59 mg/kg), and zinc (9 mg/kg) contents than the white cassava-amaranth pasta. The addition of amaranth leaf powder also enhanced the antioxidant capacities of pasta products. Cooking time and gruel solid loss were reduced upon the addition of amaranth leaf powder, which is beneficial to the consumers. Data showed the potential of amaranth-fortified yellow cassava pasta in contributing to a healthy diet in low- and middle-income countries by combining a biofortified crop with leafy vegetables via food-to-food fortification. Practical Application This work demonstrates the feasibility of a cassava-based pasta fortified with amaranth vegetables as an affordable and nutritious food to benefit micronutrient deficient consumers in countries with high cassava consumption but low vegetable intake. The inclusion of amaranth leaf powder enhanced the developed pasta's nutritional and technological properties, thus presenting a healthy food choice with the potentials for scaling up commercially.A polygyny hypothesis of female sexual fluidity proposes that women may have been evolutionarily selected to be sexually fluid, in order to have occasional sex with their cowives in polygynous marriage to reduce tension and conflict inherent in such marriage, while at the same time reproducing children with their husbands. Among others, the hypothesis predicts that women who are biologically (but not surgically) infertile would experience greater same-sex attraction. Biological infertility stems from natural, evolutionarily familiar causes such as menopause, whereas surgical infertility stems from artificial, evolutionarily novel causes such as tubal ligation or hysterectomy. Consistent with the prediction, the analyses of the National Survey of Family Growth data showed that biological infertility, but not surgical infertility, was significantly associated with same-sex self-identified labels, behavior and sexual attraction in women. Biological infertility nearly doubled the odds of women having engaged in same-sex behavior and the number of same-sex partners in the last 12 months and nearly tripled the number of same-sex partners in life. In sharp contrast, biological infertility was not associated (and surgical infertility was significantly negatively associated) with same-sex attraction in men.The effect of microwave irradiation on the oxidative stability of tocopherol-enriched corn oil at temperatures of 60 or 100°C was evaluated using the Rancimat assay. Short durations of microwave treatment (1 min) on 10-g oil aliquots were found to increase the induction period of corn oil samples containing 500 and 1000 ppm tocopherol by 7.7% and 9.9%, respectively compared to control oils. The moisture content of tocopherol-enriched corn oil decreased by 15% compared to that of corn oil after 1 min of microwave treatment. At 100°C, 1000 ppm tocopherol-enriched corn oil received 3 min of microwave treatment had 5.8% and 9.9% lower primary and secondary oxidation products than control groups, respectively while this effect was not clearly observed for oils stored at 60°C. However, 15 min of microwave irradiation accelerated the rates of lipid oxidation in corn oils irrespective of the addition of tocopherol. Content of α- and γ-tocopherols in 1 min of microwave irradiated samples remained more by 28.8 and 5.8%, respectively than those of controls after 9 h heat treatment at 100°C. Overall, microwave irradiation within 3 min can increase the oxidative stability of 10 g-corn oils, especially at 100°C, which could be due to the reduced moisture content in the bulk oil matrix. Practical Application A microwave oven is an irreplaceable home appliance and is widely used in households. Short time exposure to microwave irradiation can remove moisture efficiently from edible oils without the formation of oxidation products, which could increase the oxidative stability of these oils, especially under frying conditions. The results of this study can be utilized to ensure a longer shelf-life of fried products in the food industry by short time treatment of microwave irradiation.Poor solubility is a substantial factor that restricts the production of high value-added lentil proteins (LPs). In this study, whey protein isolates (WPIs), which have high solubility and are used in various food industries, were mixed with LPs at pH 12 to create LP-WPI protein complexes with improved water solubility properties using pH-recycling approach (maintained at pH 12.0 for 60 min and then readjusting to pH 7.0). LP-WPI protein complexes produced in this study have gained high surface charge, increased in the solubilization of protein complexes to ≈92%, as well as improved resistance against protein aggregation. The ratio of LPs to WPIs has a significant effect on the generation of unique tertiary and secondary protein structures based on the protein-protein interaction (PPI) technique via pH-recycling. The protein interaction between LPs and WPIs resulted in alteration on the surface morphology of the produced protein complexes. This study showed that electrostatic interaction, hydrophobic force, and hydrogen bond appear as major molecular forces in this PPI.