scholarly journals Acrylamide in French fries prepared at primary school canteens

2020 ◽  
Vol 11 (2) ◽  
pp. 1489-1497 ◽  
Author(s):  
Marta Mesias ◽  
Cristina Delgado-Andrade ◽  
Francisca Holgado ◽  
Francisco J. Morales
Keyword(s):  
Primary School ◽  
French Fries ◽  
Total Exposure ◽  
Dietary Acrylamide

Children are one of the most exposed groups to dietary acrylamide with ‘potato fried products’ that account for up to half the total exposure to this contaminant.

scholarly journals In Vitro and In Vivo Evaluation of the Protective Potential of Moringa oleifera Against Dietary Acrylamide-induced Toxicity

2020 ◽  
Vol 14 (1) ◽  
pp. 26-34
Author(s):  
Lubna Rifai ◽  
Mariam Mohammad ◽  
Karim Raafat ◽  
Fatima A Saleh
Keyword(s):  
Moringa Oleifera ◽  
Liver Toxicity ◽  
French Fries ◽  
Health Concern ◽  
Total Phenolic ◽  
In Vivo Evaluation ◽  
Phenolic Constituents ◽  
Dietary Acrylamide

Background: A c rylamide (AA) in food is a public health concern that has attracted scientists’ attention worldwide. Objective: This study was carried out to investigate the efficiency of Moringa oleifera (M. olifera) leaves in the reduction of AA in French fries in vitro and its hepato-protective properties against AA-induced liver toxicity in vivo. Materials and Methods: Total phenolic, flavonoid, tannin contents and antioxidant potential of M. oleifera leaves were evaluated and the phenolic constituents characterized via HPLC. AA content was also monitored in French fries using LC-MS/MS. For in vivo assay, mice were treated with AA alone or in combination with M. oleifera (150 and 250 mg/kg IP). Results: Phytochemical screening showed that gallic acid, ellagic acid, epicatechin, and quercetin were the most abundant phenolic compounds identified. This work also demonstrated a nearly 37% reduction in AA when French fries were soaked in 1% M. oleifera. Moreover, AA-intoxicated mice resulted in a significant (P < 0.05) elevation in the liver enzyme alanine aminotransferase (ALT), which was restored when pre-treated with M. oleifera. Conclusion: This study proved that M. olifera could be effective in reducing AA levels in French fries and that treatment with M. oleifera extract can restore the hepatic damage in AA-intoxicated mice.

The prevalence of allergic diseases in primary school children in Edirne, Turkey

1997 ◽  
Vol 27 (3) ◽  
pp. 262-269 ◽  
Author(s):  
Z. TOROS SELCUK ◽  
T. CAG-LAR ◽  
T. ENUNLU ◽  
T. TOPAL
Keyword(s):  
Primary School ◽  
School Children ◽  
Allergic Diseases ◽  
Primary School Children

Development of the Teacher Attitudes Towards Self-Regulated Learning Scale

2018 ◽  
Vol 34 (3) ◽  
pp. 193-205 ◽  
Author(s):  
Julia Steinbach ◽  
Heidrun Stoeger
Keyword(s):  
Factor Analysis ◽  
Primary School ◽  
Factor Structure ◽  
Concurrent Validity ◽  
Binary Logistic Regression ◽  
Affective Component ◽  
Self Regulated Learning ◽  
Regulated Learning ◽  
Teachers Attitudes ◽  
Development And Validation

Abstract. We describe the development and validation of an instrument for measuring the affective component of primary school teachers’ attitudes towards self-regulated learning. The questionnaire assesses the affective component towards those cognitive and metacognitive strategies that are especially effective in primary school. In a first study (n = 230), the factor structure was verified via an exploratory factor analysis. A confirmatory factor analysis with data from a second study (n = 400) indicated that the theoretical factor structure is appropriate. A comparison with four alternative models identified the theoretically derived factor structure as the most appropriate. Concurrent validity was demonstrated by correlations with a scale that measures the degree to which teachers create learning environments that enable students to self-regulate their learning. Retrospective validity was demonstrated by correlations with a scale that measures teachers’ experiences with self-regulated learning. In a third study (n = 47), the scale’s concurrent validity was tested with scales measuring teachers’ evaluation of the desirability of different aspects of self-regulated learning in class. Additionally, predictive validity was demonstrated via a binary logistic regression, with teachers attitudes as predictor on their registration for a workshop on self-regulated learning and their willingness to implement a seven-week training program on self-regulated learning.

Time-Based Prospective Memory in Schoolchildren

2011 ◽  
Vol 219 (2) ◽  
pp. 92-99 ◽  
Author(s):  
Babett Voigt ◽  
Ingo Aberle ◽  
Judith Schönfeld ◽  
Matthias Kliegel
Keyword(s):  
Primary School ◽  
Prospective Memory ◽  
Age Differences ◽  
Memory Retrieval ◽  
Primary Schools ◽  
School Age Children ◽  
School Age ◽  
Older Children ◽  
Strategic Monitoring ◽  
Primary School Age

The present study examined age differences in time-based prospective memory (TBPM) in primary school age children and tested the role of self-initiated memory retrieval and strategic time monitoring (TM) as possible developmental mechanisms. Fifty-four children were recruited from local primary schools (27 younger children, mean age = 7.2 ± 0.55 years, and 27 older children, mean age = 9.61 ± 0.71 years). The task was a driving game scenario in which children had to drive a vehicle (ongoing task) and to remember to refuel before the vehicle runs out of gas (TBPM task, i.e., the fuel gauge served as child-appropriate time equivalent). Fuel gauge was either displayed permanently (low level of self-initiation) or could only be viewed on demand by hitting a button (high level of self-initiation). The results revealed age-dependent TBPM differences with better performance in older children. In contrast, level of self-initiated memory retrieval did not affect TBPM performance. However, strategies of TM influenced TBPM, as more frequent time checking was related to better performance. Patterns of time checking frequency differed according to children’s age and course of the game, suggesting difficulties in maintaining initial strategic TM in younger children. Taken together, the study revealed ongoing development of TBPM across primary school age. Observed age differences seemed to be associated with the ability to maintain strategic monitoring.

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