Asymmetry in Retail, Wholesale, and Shipping Point Pricing for Fresh Vegetables

1982 ◽  
Vol 64 (2) ◽  
pp. 205-212 ◽  
Author(s):  
Ronald W. Ward
Keyword(s):  
Shipping Point ◽  
Fresh Vegetables

scholarly journals COVID-19-Related Changes in Perceived Household Food Waste in the United States: A Cross-Sectional Descriptive Study

2021 ◽  
Vol 18 (3) ◽  
pp. 1104
Author(s):  
Kelly Cosgrove ◽  
Maricarmen Vizcaino ◽  
Christopher Wharton
Keyword(s):  
Logistic Regression ◽  
Food Waste ◽  
The United States ◽  
Food Groups ◽  
Related Factors ◽  
Cross Sectional ◽  
Household Level ◽  
Binomial Logistic Regression ◽  
Household Food ◽  
Fresh Vegetables

Food waste contributes to adverse environmental and economic outcomes, and substantial food waste occurs at the household level in the US. This study explored perceived household food waste changes during the COVID-19 pandemic and related factors. A total of 946 survey responses from primary household food purchasers were analyzed. Demographic, COVID-19-related household change, and household food waste data were collected in October 2020. Wilcoxon signed-rank was used to assess differences in perceived food waste. A hierarchical binomial logistic regression analysis was conducted to examine whether COVID-19-related lifestyle disruptions and food-related behavior changes increased the likelihood of household food waste. A binomial logistic regression was conducted to explore the contribution of different food groups to the likelihood of increased food waste. Perceived food waste, assessed as the estimated percent of food wasted, decreased significantly during the pandemic (z = −7.47, p < 0.001). Food stockpiling was identified as a predictor of increased overall food waste during the pandemic, and wasting fresh vegetables and frozen foods increased the odds of increased food waste. The results indicate the need to provide education and resources related to food stockpiling and the management of specific food groups during periods of disruption to reduce food waste.

scholarly journals Advanced Killing Potential of Thymol against a Time and Temperature Optimized Attached Listeria monocytogenes Population in Lettuce Broth

Biomolecules ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 397
Author(s):  
Dimitra Kostoglou ◽  
Parthena Tsaklidou ◽  
Ioannis Iliadis ◽  
Nikoletta Garoufallidou ◽  
Georgia Skarmoutsou ◽  
...  
Keyword(s):  
Listeria Monocytogenes ◽  
Benzalkonium Chloride ◽  
Planktonic Cells ◽  
Antimicrobial Efficiency ◽  
Fresh Vegetables ◽  
Viable Bacteria ◽  
Steel Surfaces ◽  
Polymerase Chain ◽  
Killing Action ◽  
Foodborne Infections

Fresh vegetables and salads are increasingly implicated in outbreaks of foodborne infections, such as those caused by Listeria monocytogenes, a dangerous pathogen that can attach to the surfaces of the equipment creating robust biofilms withstanding the killing action of disinfectants. In this study, the antimicrobial efficiency of a natural plant terpenoid (thymol) was evaluated against a sessile population of a multi-strain L. monocytogenes cocktail developed on stainless steel surfaces incubated in lettuce broth, under optimized time and temperature conditions (54 h at 30.6 °C) as those were determined following response surface modeling, and in comparison, to that of an industrial disinfectant (benzalkonium chloride). Prior to disinfection, the minimum bactericidal concentrations (MBCs) of each compound were determined against the planktonic cells of each strain. The results revealed the advanced killing potential of thymol, with a concentration of 625 ppm (= 4 × MBC) leading to almost undetectable viable bacteria (more than 4 logs reduction following a 15-min exposure). For the same degree of killing, benzalkonium chloride needed to be used at a concentration of at least 20 times more than its MBC (70 ppm). Discriminative repetitive sequence-based polymerase chain reaction (rep-PCR) also highlighted the strain variability in both biofilm formation and resistance. In sum, thymol was found to present an effective anti-listeria action under environmental conditions mimicking those encountered in the salad industry and deserves to be further explored to improve the safety of fresh produce.

Nutrition before Conception and the Outcome of Pregnancy

1987 ◽  
Vol 5 (1-2) ◽  
pp. 31-43
Author(s):  
Arthur Wynn ◽  
McCarrison Society
Keyword(s):  
Germ Cells ◽  
Perinatal Death ◽  
Birth Spacing ◽  
Maternal Vitamin ◽  
Pregnancy Failure ◽  
Direct Damage ◽  
Nutritional Science ◽  
Fresh Vegetables ◽  
Nutritional Deficits ◽  
New Mutations

Close birth spacing increases the risk of miscarriage, congenital malformation and perinatal death because it does not give a mother time to recover from the nutritional depletion caused by the first pregnancy or time to recover a normal hormonal profile before the beginning of the next pregnancy. The placental vitamin pump causes maternal vitamin depletion. Nutritional deficits do more damage to reproduction around the time of conception than later during pregnancy. Vitamin and mineral deficiencies can cause not only direct damage to embryonic development but damage to both male and female germ cells resulting in new mutations before a conception. New mutations can cause pregnancy failure or maldevelopment of the embryo. The realisation that nutritional deficits can be mutagenic opened a new chapter in nutritional science. Some nutrients are antimutagenic and already act as such within the digestive tract, but foods contain many other antimutagenic substances. The juices of many fresh vegetables in particular are antimutagenic.

scholarly journals Dietary fiber intake from fresh and preserved food and risk of nasopharyngeal carcinoma: observational evidence from a Chinese population

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Zhi-Ming MAI ◽  
Roger Kai-Cheong NGAN ◽  
Dora Lai-Wan KWONG ◽  
Wai-Tong NG ◽  
Kam-Tong Yuen ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Dietary Fiber ◽  
Dose Response ◽  
Sun Exposure ◽  
Fiber Intake ◽  
Total Dietary Fiber ◽  
Dietary Fiber Intake ◽  
Fresh Vegetables ◽  
Incident Cases

Abstract Background The role of dietary fiber intake on risk of nasopharyngeal carcinoma (NPC) remains unclear. We examined the associations of dietary fiber intake on the risk of NPC adjusting for a comprehensive list of potential confounders. Methods Using data from a multicenter case-control study, we included 815 histologically confirmed NPC incident cases and 1502 controls in Hong Kong, China recruited in 2014–2017. Odds ratios (ORs) of NPC (cases vs controls) for dietary fiber intake from different sources at different life periods (age 13–18, age 19–30, and 10 years before recruitment) were evaluated using unconditional logistic regression, adjusting for sex, age, socioeconomic status, smoking and drinking status, occupational hazards, family history of cancer, salted fish, and total energy intake in Model 1, Epstein-Barr virus viral capsid antigen serological status in Model 2, and duration of sun exposure and circulating 25-hydroxyvitamin D in Model 3. Results Higher intake of total dietary fiber 10 years before recruitment was significantly associated with decreased NPC risk, with demonstrable dose-response relationship (P-values for trend = 0.001, 0.020 and 0.024 in Models 1–3, respectively). The adjusted ORs (95% CI) in the highest versus the lowest quartile were 0.51 (0.38–0.69) in Model 1, 0.48 (0.33–0.69) in Model 2, and 0.48 (0.33–0.70) in Model 3. However, the association was less clear after adjustment of other potential confounders (e.g. EBV) in the two younger periods (age of 13–18 and 19–30 years). Risks of NPC were significantly lower for dietary fiber intake from fresh vegetables and fruits and soybean products over all three periods, with dose-response relationships observed in all Models (P-values for trend for age 13–18, age 19–30 and 10 years before recruitment were, respectively, 0.002, 0.009 and 0.001 for Model1; 0.020, 0.031 and 0.003 for Model 2; and 0.022, 0.037 and 0.004 for Model 3). No clear association of NPC risk with dietary fiber intake from preserved vegetables, fruits and condiments was observed. Conclusion Our study has shown the protective role of dietary fiber from fresh food items in NPC risk, but no association for total dietary fiber intake was observed, probably because total intake also included intake of preserved food. Further studies with detailed dietary information and in prospective settings are needed to confirm this finding, and to explore the possible underlying biological mechanisms.

Simultaneous separation and preconcentration of phosalone and chlorpyrifos in fresh vegetables using ultrasound-assisted dispersive liquid–liquid microextraction and high performance liquid chromatography

2016 ◽  
Vol 8 (18) ◽  
pp. 3795-3801 ◽  
Author(s):  
Monireh Majlesi ◽  
Mohamadreza Massoudinejad ◽  
Fateh Hosainzadeh ◽  
Nazir Fattahi
Keyword(s):  
High Performance Liquid Chromatography ◽  
High Performance ◽  
Simple Method ◽  
Fresh Vegetables ◽  
Separation And Preconcentration ◽  
Simultaneous Separation ◽  
Ultrasound Assisted ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

UA-DLLME-SFO combined with HPLC-UV is a fast and simple method for the determination of pesticides and herbicides in fresh vegetables.

A survey of nitrite concentrations in retail fresh vegetables

1994 ◽  
Vol 11 (3) ◽  
pp. 327-332 ◽  
Author(s):  
J. Hunt ◽  
M. K. Turner
Keyword(s):  
Fresh Vegetables

In vivo and In vitro Mitigation Effects of Lactic Acid Bacteria Derived from Fresh Vegetables on Aflatoxins

2021 ◽  
Vol 62 (5) ◽  
pp. 148-156
Author(s):  
Kenji Oonaka ◽  
Naoki Kobayashi ◽  
Yosuke Uchiyama ◽  
Mioko Honda ◽  
Shiro Miyake ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Fresh Vegetables
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