Analysis of phytate in raw and cooked potatoes

Phillippy, Brian Q.; Lin, Mengshi; Rasco, Barbara

doi:10.1016/j.jfca.2003.08.001

Cited by 45 publications

(31 citation statements)

References 22 publications

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“…Currently, however, there is evidence that dietary phytate at low levels may have a beneficial role as an antioxidant, anti-carcinogen and likely plays an important role in controlling hypercholesterolemia and atherosclerosis [33]. Oxalates can have a harmful effect on human nutrition and health, especially by reducing calcium absorption and aiding the formation of kidney stones [34].…”

Section: Discussionmentioning

confidence: 99%

Nutritional and antinutritional evaluation of indigenous Ethiopian okra (Abelmoschus esculentus) seed accessions

Habtamu¹,

Haki²,

Fekadu³

et al. 2018

AJFAND

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Okra, of high nutritional potential, is one of the underutilized indigenous vegetables in Ethiopia. A food based-intervention specifically dietary diversification is an affordable and sustainable strategy to meet the demand of adequate food supply and population growth. One way of ensuring dietary diversity is to search and promote underutilized indigenous plant species such as okra. Therefore, the objective of this study was to determine nutritional and anti-nutritional factors content of the seeds of eight okra accessions (OPA#1, OPA#2, OPA#3, OPA#4, OPA#5, OPA#6, OPA#7 and OPA#8) grown at Assosa Agricultural Research Center in Benishangul Gumuz region, Ethiopia. Molar ratios of the seeds were also calculated and compared to the critical values to predict the mineral bioavailability. All the analyses were conducted using official standard procedures and grade standard reagents. The results of this study revealed that the proximate composition (g/100 g) of the seed accessions varied significantly (P<0.05) and had respective ranges for moisture content 9. The seeds of accession of OPA#6 contained high amounts of crude protein and fat, whereas OPA#8 was high in calcium, iron and potassium. The range of phytate, tannin and oxalate content (mg/100g) of the seed of okra accessions ranged from 0.39 to 0.46, 0.71 to 3.78, 0.74 to 0.75, respectively. The calculated molar ratios of phytate:calcium, phytate:iron, phytate:zinc, oxalate:calcium and phytate*calcium/zinc were 0.0025 to 0.0037, 0.0017 to 0.0041, 0.0063 to 0.106, 0.0020 to 0.0051 and 0.0140 to 0.0175, respectively, below the critical value, indicating high bioavailability of calcium, iron and zinc in all accessions. The results of this study revealed that seeds of okra contain appreciable amounts of essential nutrients and are low in anti-nutrient content implying high mineral bioavailability. Hence, increasing the production and consumption of these nutrient rich underutilized okra seeds could help in food fortification, dietary diversification and alleviation of problems associated with malnutrition in the country.

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Section: Discussionmentioning

confidence: 99%

Nutritional and antinutritional evaluation of indigenous Ethiopian okra (Abelmoschus esculentus) seed accessions

Habtamu¹,

Haki²,

Fekadu³

et al. 2018

AJFAND

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“…The type of potato material used in the feeding study does not present a problem regarding the glycoalkaloid content as it has been documented that physical processes such as cooking, boiling, microwaving and frying, leads to only minor reductions in the total GA content (Takagi et al, 1990). It needs to be recognised, however, that potatoes also contains other anti-nutrients, such as phytate and trypsin-(proteinase)-inhibitors (Burlingame et al, 2009), but that these are present at low levels and in the case of phytate much lower than that found in cereal-based foods (Burlingame et al, 2009;Phillippy et al, 2004).…”

Section: Animal Feeding Studymentioning

confidence: 99%

Compositional and toxicological analysis of a GM potato line with reduced α-solanine content – A 90-day feeding study in the Syrian Golden hamster

Langkilde

Schrøder

Frank

et al. 2012

Regulatory Toxicology and Pharmacology

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“…In addition, Phillippy et al (1988Phillippy et al ( , 2004 and Lehrfeld and Morris (1992) suggested that phytic acid in unprocessed food products mainly appears as IP6, and thus the precipitation or AOAC anion-exchange method is useful only to measure the phytic acid content in unprocessed (Brune et al, 1992;Sandstrom and Sanberg, 1992). IP5 and IP6 have stronger inhibitory effects on micro-nutrient absorption than the other inositol forms (IP1, IP2, IP3 and IP4) (Sandberg et al, 1999).…”

Section: Phytate Contentmentioning

confidence: 99%

Effects of three conventional cooking methods on vitamin C, tannin, myo-inositol phosphates contents in selected Thai vegetables

Somsub

Kongkachuichai

Sungpuag

et al. 2008

Journal of Food Composition and Analysis

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Analysis of phytate in raw and cooked potatoes

Cited by 45 publications

References 22 publications

Nutritional and antinutritional evaluation of indigenous Ethiopian okra (Abelmoschus esculentus) seed accessions

Nutritional and antinutritional evaluation of indigenous Ethiopian okra (Abelmoschus esculentus) seed accessions

Compositional and toxicological analysis of a GM potato line with reduced α-solanine content – A 90-day feeding study in the Syrian Golden hamster

Effects of three conventional cooking methods on vitamin C, tannin, myo-inositol phosphates contents in selected Thai vegetables

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