45 research outputs found

    Investigating the influence of ultrasound pre-treatment on drying kinetics and moisture migration measurement in Lactobacillus sakei cultured and uncultured beef jerky

    Get PDF
    Low Frequency-Nuclear Magnetic Resonance (LF-NMR) was employed to elucidate changes in water distribution in cultured (Lactobacillus sakei) and uncultured beef jerky samples subjected to ultrasound pre-treatment. Ultrasound pre-treatment at frequencies of 25, 33 and 45 kHz for 30 min, followed by marination (18 h) was carried out for both cultured and uncultured jerky samples. Among the various kinetic models assessed, the Wang and Singh model provided the closest fit to the drying experimental data, with high R2 (≄0.994), low RMSE (≀0.023) and low AICc (100 ms (T22), respectively. Results presented in this study demonstrates that the ultrasound effect on drying behaviour was frequency dependent and that LF-NMR can be employed to evaluate moisture mobility and drying degree of beef jerky

    Statistical approaches to access the effect of Lactobacillus sakei culture and ultrasound frequency on fatty acid profile of beef jerky

    Get PDF
    The objective of this study was to investigate the effect of ultrasonic frequencies and drying time on fatty acid profiles of beef jerky samples possessing different microbial compositions. Beef slices were cured using curing solutions formulated both with and without Lactobacillus sakei. Curing was carried out for 18 h at 4 °C prior to hot air drying at 60 °C for 4 h. Jerky samples from both treatment groups were then subjected to ultrasonic frequencies of 25 kHz, 33 kHz and 45 kHz for 30 min. Beef jerky samples were subsequently analysed for fatty acid profile using Gas Chromatography. In the present study, beef slices showed a high level of MUFAs, which accounted for 45.6–53.8%, followed by the SFAs (36.3–47.8%) and PUFAs (4.8–13.7%), respectively. Results demonstrated a significant effect of beef jerky processing on fatty acid profile. Various correlation analyses showed that changes in fatty acid profiles were significantly affected by individual and/or interactive effects of L. sakei, drying time and ultrasonic frequency

    Application of chemometrics to assess the influence of ultrasound frequency, Lactobacillus sakei culture and drying on beef jerky manufacture: Impact on amino acid profile, organic acids, texture and colour

    Get PDF
    The effects of ultrasound (US) frequency, addition of Lactobacillus sakei culture and drying time on key nutritional (protein, amino acids, and organic acids) and physicochemical properties (texture and colour) of cultured and uncultured beef jerky were evaluated. Cultured and uncultured jerky samples were subjected to US frequencies of 25 kHz, 33 kHz and 45 kHz for 30 min prior to marination and drying. Principal component analysis demonstrated a significant effect of beef jerky processing conditions on physicochemical properties. Taurine content of jerky samples was found to increase with an increase in ultrasonic frequencies for cultured samples. No significant changes in colour values were observed for ultrasound pre-treated and control samples. Interactive effects of culture treatment, drying and ultrasonic frequency were observed. This study demonstrates that the nutritional profile of beef jerky can be improved through the incorporation of L. sakei

    Ultrasonic-assisted incorporation of nano-encapsulated omega-3 fatty acids to enhance the fatty acid profile of pork meat

    Get PDF
    In this study, ultrasound was employed to enhance the diffusion of microencapsulated fatty acids into pork meat. Nanovesicles of fish oil composed of 42% EPA (eicosapentanoic acid) and 16% DHA (docosahexanoic acid) were prepared using two different commercial Pronanosome preparations (Lipo-N and Lipo-CAT; which yield cationic and non-cationic nanovesicles, respectively). The thin film hydration (TFH) methodology was employed for encapsulation. Pork meat (Musculus semitendinosus) was submerged in the nanovesicles suspension and subjected to ultrasound (US) treatment at 25 kHz for either 30 or 60 min. Samples were analysed for fatty acid composition using gas chromatography-flame ionisation (GC-FID). The content of long-chain PUFAs, especially omega-3, was found to increase following the US treatment which was higher for Lipo-CAT compared to Lipo-N nanovesicles. Samples subjected to Lipo-N had higher atherogenic and thrombogenic indices, indicating higher levels of saturated fatty acids compared to the Lipo-CAT. The omega-6/omega-3 ratio in pork meat was significantly reduced following the US treatment, thus indicating an improved fatty acid profile of pork

    JETstream Volume 1 Issue 2

    Get PDF
    The JET Library kicked off 2017 with an always well-received event, our annual “Beat the Blahs” Party, sponsored by the Office of the President. This year, we featured a dessert table where members of the Molloy Community brought in their favorite desserts to share with everyone. We also held our first JET Bake-off, with Karen Cusumano, Executive Assistant in the President’s Office, being awarded a “Certificate in Excellence in Baking” with her “Classic Sour Cream Cheese Cake.” Requests have been received by the library asking if she will share her recipe! Although we definitely did enjoy a delicious feast, I think the consensus is unanimous when I say that the best part of the event was being able to spend time with everyone, engaging in good conversation, laughter and blintzes. In 2016, we welcomed several new members to the library; Tabitha Ochtera, Shikha Joseph and Sean Williams whom we look forward to you getting to know in our “Welcoming our New Additions” section. Theresa Rienzo, Associate Librarian Health Sciences and Head of Patron Services, an integral member of the JET Library is featured in our “Spotlight” article. A new column titled “What we are reading” was added, where our librarians and staff share their opinions on books from our collection. Among the various other articles, we would like to bring special attention to the “Did you know?” article where you can learn more about a new resource recently activated in the Ovid database, as well as SWANK, one of JET Library’s streaming video databases. Last but certainly not least, meet JET Library’s Official Mascot, Luciano

    JETstream Volume 2 Issue 1

    Get PDF
    Although summer tends to be when we might experience a bit of a respite on campus, that was certainly not the case here at the JET Library. The library underwent some significant renovations to two of our instruction rooms, Educational Resource Center, and the Suffolk Extension Center Library. We also acquired several new products and technologies such as the DigitalCommons and BrowZine, which you may read about further in this issue of JETstream. At the start of the semester, we continued our annual tradition of hosting the JET Library Pizza Party to welcome the incoming freshmen, as well as our returning students where a great time was had by all! During the course of the semester, many of our students participate in a scavenger hunt. This is one of the tasks as part of their FST class, where students get to familiarize themselves with different areas and services of the library, while having fun bonding with their classmates

    JETstream Volume 2 Issue 2

    Get PDF
    Although the calendar indicated otherwise, with the countless snowstorms these past few months, it seemed as if spring would never arrive. But alas, spring has sprung at Molloy and with that, the end of the Spring 2018 semester. So before many of you leave for your summer breaks or vacations, I invite you to peruse our latest edition of JETstream, perhaps even take it along with you as your summer read! Okay, so maybe a newsletter does not top your summer reading list, but I have no doubt you will find something that is useful, or at the very least, informative and even amusing

    Age and distraction are determinants of performance on a novel visual search task in aged Beagle dogs

    Get PDF
    Aging has been shown to disrupt performance on tasks that require intact visual search and discrimination abilities in human studies. The goal of the present study was to determine if canines show age-related decline in their ability to perform a novel simultaneous visual search task. Three groups of canines were included: a young group (N = 10; 3 to 4.5 years), an old group (N = 10; 8 to 9.5 years), and a senior group (N = 8; 11 to 15.3 years). Subjects were first tested for their ability to learn a simple two-choice discrimination task, followed by the visual search task. Attentional demands in the task were manipulated by varying the number of distracter items; dogs received an equal number of trials with either zero, one, two, or three distracters. Performance on the two-choice discrimination task varied with age, with senior canines making significantly more errors than the young. Performance accuracy on the visual search task also varied with age; senior animals were significantly impaired compared to both the young and old, and old canines were intermediate in performance between young and senior. Accuracy decreased significantly with added distracters in all age groups. These results suggest that aging impairs the ability of canines to discriminate between task-relevant and -irrelevant stimuli. This is likely to be derived from impairments in cognitive domains such as visual memory and learning and selective attention

    Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

    Get PDF
    Summary Background Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally. Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income countries globally, and identified factors associated with mortality. Methods We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation, and Hirschsprung’s disease. Recruitment was of consecutive patients for a minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause, in-hospital mortality for all conditions combined and each condition individually, stratified by country income status. We did a complete case analysis. Findings We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal malformation, and 517 with Hirschsprung’s disease) from 264 hospitals (89 in high-income countries, 166 in middleincome countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male. Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3). Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups). Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in lowincome countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries; p≀0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11], p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20 [1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention (ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed (ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65 [0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality. Interpretation Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between lowincome, middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger than 5 years by 2030

    Utmaningarna med att bemöta cyberhot motunderrÀttelseinformation

    No full text
    Today cyber attacks, incidents, threats, and breaches continue to rise in scale and numbers, as sophisticated attackers continuously break through conventional safeguards each day. Whether strategic, operational, or tactical, threat intelligence can be defined as aggregated information and analytics that feed the different pillars of any given company’s cybersecurity infrastructure. It provides numerous benefits, enabling improved prediction and detection of threats, empowering and informing organizations to make better decisions during as well as following any cyber attack and aiding them to develop a proactive cyber security posture. It helps provide actionable intelligence, which equips senior management to make timely actions and decisions that might otherwise have an impact on the company’s ability to keep ahead and defend against this growing sea of threats. Driving momentum in this area also helps reduce their reaction times, enabling a shift for organizations to become more proactive than reactive. Perimeter defenses seem to no longer suffice as threats are becoming more complex and escalating with no best practices and guidelines available for companies to follow after, during, or before the time of the threat and risk due to the multiple components involved, including the various standards and platforms. Sharing and analyzing threat data effectively requires standard formats, protocols, shared understanding of the relevant terminology, purpose, and representation. Threat intelligence and its analysis are seen as a vital component of cyber security and a tool that many companies cannot leverage and utilize fully. Securing today's organizations and businesses, therefore, will require a new approach. In our study with security executives working across multiple industries, we have identified the various challenges that prevent the successful adoption of threat intelligence and with the rising adoption of the multiple platforms, including issues related to data quality, absence of universal standard format and protocol, challenge enforcing data sharing based on CTI data attribute, lack of authentication and confidentiality preventing data sharing, missing API integration capability in conjunction with multi-vendor tools, lack of identification of tacticalIOCs, failure to define TTL value(s), lack of deep automation, analytical and visualization capabilities. Ensuring the right expertise and capabilities in these identified areas will help leverage threat intelligence effectively, help to sharpen the focus, and provide the needed competitive edge
    corecore