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Registros recuperados: 7
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Circadian rhythms of the L-ascorbic acid level in Euglena and spinach OAK
Kiyota, Maki; Numayama, Naoko; Goto, Ken.
Plant defenses against photo-oxidative stress have been studied almost exclusively with respect to stress responses, and little is known about how non-enzymic antioxidants change under constant conditions without a time cue or an environmental stress. Here, we show that, in both the flagellated alga Euglena gracilis Z and the angiosperm Spinacia oleracea L., the potent antioxidant L-ascorbic acid (Asc) displays a circadian rhythm with a maximum at subjective midday, a physiological state reflecting that attained at noon under daily light/dark cycles. Thus, photosynthetic organisms can maximize antioxidant levels in anticipation of midday, when photo-oxidative stress is most severe. These results may partly explain the in-phase circadian UV-C resistance...
Palavras-chave: Antioxidant; L-ascorbic acid; Circadian; Euglena gracilis; Midday; Photooxidation; Spinach.
Ano: 2006 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/716
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Evaluation of various soaking agents as a novel tool for heavy metal residues mitigation from spinach Ciênc. Tecnol. Aliment.
AMIR,Rai Muhammad; RANDHAWA,Muhammad Atif; SAJID,Muhammad Wasim; NADEEM,Muhammad; AHMAD,Anwaar; WATTOO,Fahad Masoud.
Abstract Heavy metals pollution is a global threat to the environment and ecosystem due to various human and natural activities. Heavy metal intake through vegetables and diet leads to numerous ailments such as nervous disorder, kidney damage tubular growth and bone disease. The present study was conducted to mitigate the residue of heavy metals Hg, Pb, Zn and As in spinach collected from self-grown supervised field by using different washing treatments. Amount of trace metals was measured in fresh and chemically washed spinach samples with the help of Atomic Absorption Spectrophotometer (AAS). Results revealed that highest reduction of mercury, lead, zinc and arsenic residues with 10% citric acid was 23%, 28%, 54% and 22% respectively among the tested...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metals; Spinach; Wastewater; Acidic solutions; Alkaline solutions; Biological extract.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000100176
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Food Recalls and Food Safety Perceptions: The September 2006 Spinach Recall Case AgEcon
Onyango, Benjamin M.; Miljkovic, Dragan; Hallman, William K.; Nganje, William E.; Condry, Sarah C.; Cuite, Cara L..
This study analyzes public perceptions of food safety using a national survey conducted in November 2006, soon after the September 2006 nationwide spinach recall. We explore relationships between peoples’ perceived risks of food contamination (spinach in this case) and their trust in the institutions in charge of safeguarding/ensuring safety. Finally, we examine relationships between individual observance of basic good food handling practices and food safety. Trust in institutions through which food passes and regulatory agencies were shown to be critical in determining food safety perceptions. For example, confidence in the USDA as a regulatory agent was viewed positively, and hence contributed toward viewing the four types of spinach as safe for...
Tipo: Journal Article Palavras-chave: Food recalls; Food safety; Public perceptions; Spinach; Agribusiness; Food Consumption/Nutrition/Food Safety.
Ano: 2008 URL: http://purl.umn.edu/90563
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Food Recalls and Food Safety Perceptions: The September 2006 Spinach Recall Case AgEcon
Onyango, Benjamin M.; Miljkovic, Dragan; Hallman, William K.; Nganje, William E.; Condry, Sarah C.; Cuite, Cara L..
This study analyzes public perceptions on food safety using a national survey conducted soon after the nationwide spinach recall (November 2006). We explore relationships between peoples' perceived risks of food contamination (spinach in this case) and their trust in the institutions in charge of safeguarding/ensuring safety. Finally, we explore relationships between individual observance of basic good food handling practices and food safety. Trust in institutions through which food passes and regulatory agencies were shown to be critical in determining food safety perceptions. For example, skepticism with which the public views food corporations (processors, transporters or retailers) impacted food safety perceptions negatively. On the other, confidence...
Tipo: Working or Discussion Paper Palavras-chave: Food recalls; Food safety; Public perceptions; Spinach; Food Consumption/Nutrition/Food Safety.
Ano: 2007 URL: http://purl.umn.edu/10004
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Food Safety and Spinach Demand: A Shock Correction Model AgEcon
Arnade, Carlos Anthony; Calvin, Linda; Kuchler, Fred.
This paper generalizes the standard error correction model and applies this more general modeling procedure to an analysis of the spinach e-coli outbreak on consumer demand.
Tipo: Conference Paper or Presentation Palavras-chave: E-Coli; Error Correction Model; Spinach; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2009 URL: http://purl.umn.edu/49208
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Goitrogenic/antithyroidal potential of moringa leaves (Moringa oleifera) and spinach (Spinacia oleracea) of Indian origin on thyroid status in male albino rats BJPS
Mondal,Chiranjit; Chandra,Amar Kumar.
Moringa leaves and spinach used as vegetables containing cyanogens and polyphenols having suspected antithyroidal activity; however, detailed studies in this aspect found unavailable. Goitrogenic/antithyroid potentiality of those plant foods of Indian origin was evaluated. To explore the goitrogenic/antithyroid effect of those plant foods cyanogenic glucosides, glucosinolates, thiocyanate and polyphenol content were measured. These plant foods were fed with diet regularly to adult male albino rats for 30 and 60 days respectively, followed by evaluation of morphological and functional status of thyroid,as thyroid gland weight, the activity status of thyroid hormone synthesizing enzymes viz. TPO, Na+-K+-ATPase, deiodinase I, thyroid hormone profiles, thyroid...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Goitrogen; Hypothyroidism; Iodine; Moringa; Spinach.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100559
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Greene Gardens AgEcon
Baker, Gregory A.; Hanson, Kirk O..
The case describes the 2006 E. coli outbreak in the California spinach industry. The case unfolds over a period of about one month, with four separate eventful days described in detail. At the end of the narrative for each day, the reader is asked to decide how he or she would respond to the events and justify his or her decision.
Tipo: Journal Article Palavras-chave: Business ethics; Communication; Crisis management; Spinach; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Teaching/Communication/Extension/Profession; Q10; Q13.
Ano: 2009 URL: http://purl.umn.edu/53747
Registros recuperados: 7
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