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The high prevalence of non transmissible chronic diseases (NCD) related to food consumption had increased the studies conducted to investigate the relationship between diet and health. A smaller incidence of NCD, with food patterns with high consumption of fruits and vegetables has been observed and chemical compounds of these foods have been one of the main subjects of the actual research in the reaqltion between food consumption and health. The effect of vegetable foods has been attributed to various nutrients and bioactive compounds with antioxidant activity. In order to determine the antioxidant capacity of vegetable foods cultivated in Chile, natural fruits and vegetables were analyzed according to the FRAP (ferric reducing activity power) method, reading to the 4 minutes. In vegetables, the values were between 0.002 and 1.91 milimoles of Fe/l00 g for cooked carrot and red pepper respectively. The values of the fruits ranged between 0.02 milimoles of Fe/100 g for the cucumber and 12.32 for maqui, the berries studies showed values between 3.10 for strawberry and 3.55 for wild blackberry. Lemmon and quince with 0.25 and 0.23 respectively are located in the intermediate level and the lowest values within the fruits corresponded to apple (fuji variety) and peaches. 相似文献
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Gamboa Delgado EM López Barbosa N Prada Gómez GE Franco Cadena JT Landínez Navarro A 《Archivos latinoamericanos de nutrición》2010,60(3):247-253
The objective of this study was to determine associated factors to the consumption of fruit and vegetables (FV) in the adult population of each socioeconomic status (SES) in Bucaramanga, Colombia. We conducted a cross-sectional in a sample of 317 people and we measured socio-demographic, economic and anthropometric variables and dietary factors related to the purchase and consumption of FV. We made a survey, a 24-Hour dietary recall and we did anthropometric measurements. Portion sizes were estimated with a standardized set of utensils and food-photography atlas. Frequencies, measures of central tendency and dispersion were established and Logistic Regression models were used for the bi and multivariate analysis. Average consumption of FV was 162.6 g/day (188.5 g in high SES and 145.7 g in low SES, p = 0.056). On average 2 servings per day of FV (2.3 servings in high SES and 1.5 in low SES, p = 0.055). The prevalence of adequate intake of FV (more than 5 servings / day) was 8.6% (8.9% in high SES and 8.4% in low SES, p = 0.896). The associated factor to consumption of FV was BMI > or =25 (OR: 0.31, CI (95%): 0.11-0.89, p = 0.030), adjusted for occupation, income, SES, and number of family members. FV consumption is low; excess weight is the only variable associated to no-consumption of five or more servings; causes: cost to the consumption of fruit and flavor in the case of vegetables. 相似文献
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Reza Amani Mohammad Noorizadeh Samira Rahmanian Naser Afzali Mohammad H Haghighizadeh 《Nutrition journal》2010,9(1):70
Background and aims
There are limited findings available on coronary artery disease (CAD) risk factors and nutritional pattern of CAD patients in Iran. The purpose of this study was to compare nutritional-related risk factors of CAD patients with that of matched controls. 相似文献4.
高效液相色谱法同时测定蔬菜及水果中的吲哚丁酸和萘乙酸 总被引:1,自引:0,他引:1
采用高效液相色谱法,以DiamonsilTMC1(8250mm×4.6mm,5μm)为色谱柱,甲醇∶水∶磷酸为60∶40∶0.35(pH值3~4)作为流动相,检测波长为272nm的条件下测定萘乙酸和吲哚丁酸含量,试验结果表明:在0~50.00mg.L-1范围内线性关系良好,相关系数r吲=0.9998,r萘=0.9998,最低检出浓度为0.025mg.L-1,试样在5.00、10.00、15.00mg.L-13个添加水平下的平均回收率在81.2%~99.4%之间,相对偏差在0.41%~1.61%之间,方法简便,准确。 相似文献
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Low intake of fruits and vegetables is among the risk factors for cardiovascular disease and some cancers. The countries have implemented policies to promote food consumption. Identifying the barriers perceived by people to consume it helps to recognize the resources that would be willing to exchange for benefits. The objectives of this study are to determine what factors are facilitators and barriers to increasing consumption of fruits and vegetables in six countries in Latin America, and a possible relationship between the 5 a day program and the food based dietary guidelines. This is a qualitative and field study. Techniques used were group interviews with health professionals and the media, and interviews with experts in food policy. The outstanding facilitators were television advertising campaigns promoting their use, and the existence of fruits and vegetables markets in the neighborhoods. Highlighted those obstacles were lack of public policies of advertising regulations and trade hooks of food, of self-sustainability, of funding for related programs, and of sociological research of the topic. The main barrier to the consumption of fruits and vegetables in these countries was the lack of policy support and related public policy, being a good advertising campaign vital to the success of programs that encourage consumption. The main relationship between the Dietary Guidelines and the 5 A Day Program is to both promote the consumption of vegetables and fruits. 相似文献
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Agostini LR Morón Jiménez MJ Ramón AN Ayala Gómez A 《Archivos latinoamericanos de nutrición》2004,54(1):89-92
The main objective of the work was to determine the antioxidant capacity of the flavonoids in red apples with and without skin, strawberries, tomatoes and fresh onions and thermally treated: humid heat (boiled and vapor), dry heat (oven) and high frequency (microwaves). The measurement was carried out in a fluorescence spectroscopy and the statistical analysis through the Variance and Test of Duncan. The results indicate that the antioxidant capacity of the flavonoids of red apples with and without skin, strawberries, tomatoes and onions were of 0.259, 0.267, 0.278, 0.165 and 0.223 Equivalent uM Trolox. These values diminished after the thermal treatment at a higher degree by dry heat at 0.128, 0.072, 0.077 and 0.048 Equivalent uM Trolox respectively and 0.146 Equivalent uM Trolox in the boiled onion. The flavonoids showed a higher antioxidant activity in fresh state, and their activity diminished under heat (cooking). 相似文献
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Wentao Liu Yi Xu Lili Sun Lijing Lu Yun Wang Yujie Wang Hao Liu Suqin He Chengshen Zhu 《应用聚合物科学杂志》2020,137(29):48883
A novel intelligent moisture-controlling polymer composite (IMCPC) with fast response humidity control performance, which can be applied in refrigerators for edible fruits and vegetables, was prepared by intercalation polymerization of acrylamide (AM) with sepiolite. The performance of the resulted IMCPCs was investigated. The results show that vacuum freeze-dried polyacrylamide/sepiolite composite has a porous structure and excellent moisture absorption properties. The IMCPC responds quickly within 30 min both in high and low humidity inside the refrigerator, maintaining relative humidity in the higher range (80–87% RH). It can effectively extend the storage of fruits and vegetables in the refrigerator box. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137, 48883. 相似文献
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Leili Salehi Hassan Eftekhar Kazem Mohammad Sedigheh Sadat Tavafian Abolghasem Jazayery Ali Montazeri 《Nutrition journal》2010,9(1):2
Background
There is substantial evidence that low consumption of fruit and vegetables (FV) is a major risk factor for many chronic diseases. The aim of this study was to assess FV consumption and the variables that influence it among elderly individuals in Iran aged 60 and over. 相似文献10.
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Cox C 《Statistical methods in medical research》2006,15(6):611-625
In a comprehensive review, Benichou recently discussed adjusted estimators of the attributable risk (AR). Among these are model-based estimates, where adjustment for confounding factors is based on a regression model. Different model-based approaches have been developed for case-control and cohort studies. The purpose of this article is to provide a detailed review and illustration of model-based methods for both types of sampling. For case-control studies, we show that two previously proposed approaches for the common case of a logistic regression model are in fact identical. This allows a unified approach to the estimation of the adjusted AR, which also accommodates stratified sampling. For cohort studies, a loglinear model is proposed for the case where cross-sectional sampling allows estimation of the prevalence of exposure; the approach can also be used for stratified sampling when the prevalence is known or can be estimated. For both designs, the standard error of the adjusted AR is estimated using the delta method. Estimation of the generalized AR is also discussed for both types of sampling. Examples show that for even fairly complex models, the computations are practical using standard statistical software. The bootstrap provides an easily implemented alternative to the delta method for the computation of standard errors. 相似文献
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Richard A Dunn Joseph R Sharkey Justus Lotade-Manje Yasser Bouhlal Rodolfo M NaygaJr 《Nutrition journal》2011,10(1):6
Background
Little is known about how affordability of healthy food varies with community characteristics in rural settings. We examined how the cost of fresh fruit and vegetables varies with the economic and demographic characteristics in six rural counties of Texas. 相似文献17.
Mahsa Jessri Bahram Rashidkhani Bahareh Hajizadeh Maryam Jessri Carolyn Gotay 《Nutrition journal》2011,10(1):1-15
Background
Although Iran is a high-risk region for esophageal squamous cell carcinoma (ESCC), dietary factors that may contribute to this high incidence have not been thoroughly studied. The aim of this study was to evaluate the effect of macronutrients, vitamins and minerals on the risk of ESCC.Methods
In this hospital-based case-control study, 47 cases with incident ESCC and 96 controls were interviewed and usual dietary intakes were collected using a validated food frequency questionnaire. Data were modeled through unconditional multiple logistic regression to estimate odds ratios (OR) and 95% confidence intervals (CI), controlling for age, sex, gastrointestinal reflux, body mass index, smoking history (status, intensity and duration), physical activity, and education.Results
ESCC cases consumed significantly more hot foods and beverages and fried and barbecued meals, compared to the controls (p < 0.05). After adjusting for potential confounders, the risk of ESCC increased significantly in the highest tertiles of saturated fat [OR:2.88,95%CI:1.15-3.08], cholesterol [OR:1.53, 95%CI: 1.41-4.13], discretionary calorie [OR:1.51, 95%CI: 1.06-3.84], sodium [OR:1.49,95%CI:1.12-2.89] and total fat intakes [OR:1.48, 95%CI:1.09-3.04]. In contrast, being in the highest tertile of carbohydrate, dietary fiber and (n-3) fatty acid intake reduced the ESCC risk by 78%, 71% and 68%, respectively. The most cancer-protective effect was observed for the combination of high folate and vitamin E intakes (OR: 0.02, 95%CI: 0.00-0.87; p < 0.001). Controls consumed 623.5 times higher selenium, 5.48 times as much β-carotene and 1.98 times as much α-tocopherol as the amount ESCC cases consumed.Conclusion
This study suggests that high intake of nutrients primarily found in plant-based foods is associated with a reduced esophageal cancer risk. Some nutrients such as folate, vitamin E and selenium might play major roles in the etiology of ESCC and their status may eventually be used as an epidemiological marker for esophageal cancer in Iran, and perhaps other high-risk regions. 相似文献18.
Kelvi Wilson Evaristo Miranda Joana Dias Bresolin Caio Vinícius Lima Natarelli Selene Daiha Benevides Maria do Socorro Rocha Bastos Luiz Henrique Capparelli Mattoso Juliano Elvis de Oliveira 《应用聚合物科学杂志》2021,138(30):50735
This study is reported as the first demonstration of the use of solution blow spun mats in a Nano-sachet system containing a humidity absorber hydrogel and a paraffin wax tablet impregnated with potassium permanganate (KMnO4) for exogenous ethylene (ex-C2H4) oxidation, in order to delay fruit ripening. The tomatoes quality during storage time was characterized by gas chromatography (GC) (ethylene concentration and CO2 emission analysis—respiration rate), and colorimetry (green/red color parameter). Ex-C2H4 production over storage time was reduced for the Nano-sachet system when compared to the control system. Color changes, from 72 to 120 h, displayed fruit still predominantly green in the Nano-Sachet system (a* from −9.1 to −6.9), color transition green-red in the TNT-sachet (−7.5 to −0.3) and increased red color fruit in the control system (−6.1 to 3.7). This work suggests that nanofibrous mats can be used as a packaging system with the ability to protect, potentialize ethylene oxidation and extend climacteric fruits and vegetables quality in shelf life. 相似文献
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微量元素锌与蔬菜产量和品质的关系 总被引:3,自引:0,他引:3
锌是蔬菜生长发育必需的微量元素之一,对锌在蔬菜体内的含量与分布,锌与蔬菜产量、品质的关系等方面的研究现状做一综述,并提出了该研究未来的发展趋势,以引起人们对锌肥的重视。 相似文献