Study of nutrients and toxic minerals in rice and legumes by instrumental neutron activation analysis and graphite furnace atomic absorption spectrophotometry

Parengam, Montira; Judprasong, Kunchit; Srianujata, Songsak; Jittinandana, Sitima; Laoharojanaphand, S.; Busamongko, Arporn

doi:10.1016/j.jfca.2009.12.012

Cited by 71 publications

(45 citation statements)

References 14 publications

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“…Further testing revealed that the growth and nodulation of alfalfa were strongly inhibited when Mo concentration exceeded the rhizobia tolerance threshold content. Similar results have been reported when high concentrations of Mo had negative osmotic effects on Bradyrhizobium [42, 43] and an inhibitory effect on the activity of phosphatase in pea plumules [44, 45]. However, legume crop yield and nodulation did not always respond to the addition of Mo to seed inoculant formulas.…”

Section: Discussionsupporting

confidence: 83%

Molybdate in Rhizobial Seed-Coat Formulations Improves the Production and Nodulation of Alfalfa

et al. 2017

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Rhizobia-legume symbiosis is the most well researched biological nitrogen fixation system. Coating legume seeds with rhizobia is now a recognized practical measure for improving the production of legume corp. However, the efficacy of some commercial rhizobia inoculants cannot be guaranteed in China due to the low rate of live rhizobia in these products. A greenhouse experiment was conducted to assess the effects of different rhizobial inoculant formulations on alfalfa productivity and nitrogen fixation. Two rhizobia strains, (ACCC17631 and ACCC17676), that are effective partners with alfalfa variety Zhongmu No. 1 were assessed with different concentrations of ammonium molybdate in seed-coat formulations with two different coating adhesives. Our study showed that the growth, nodulation, and nitrogen fixation ability of the plants inoculated with the ACCC17631 rhizobial strain were greatest when the ammonium molybdate application was0.2% of the formulation. An ammonium molybdate concentration of 0.1% was most beneficial to the growth of the plants inoculated with the ACCC17676 rhizobial strain. The sodium carboxymethyl cellulose and sodium alginate, used as coating adhesives, did not have a significant effect on alfalfa biomass and nitrogen fixation. However, the addition of skimmed milk to the adhesive improved nitrogenase activity. These results demonstrate that a new rhizobial seed-coat formulation benefitted alfalfa nodulation and yield.

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Section: Discussionsupporting

confidence: 83%

Molybdate in Rhizobial Seed-Coat Formulations Improves the Production and Nodulation of Alfalfa

et al. 2017

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“…Some essential minerals were found in black rice bran: Zn (103-133 μg/g), Se (11-18 μg/g) and Cu (3.8-7.1 μg/g). This result is in agreement with the report of Parengam et al (9), who found that the two preventing minerals in various samples were K or Mg. However, their contents varied even in the same rice cultivar due to many factors and growing conditions, including soil type, fertilizers, herbicides and fungicides (27,28).…”

Section: Mineral Profi Le Of Black Glutinous Rice Bransupporting

confidence: 94%

“…Rice is also a rich source of minerals, including Ca, Cu, Fe, K, Mg, Mn, Se and Zn (8,9). It was found in an in vitro study that Mn contributes to the antioxidant activity of rice (10).…”

Section: Introductionmentioning

confidence: 99%

Correlation of Phytochemical, Metal Contents and Antioxidant Activities of Black Glutinous Rice Bran and Potential Chemoprevention

Ngamdee

Wichai

Jiamyangyuen

2016

Food Technol. Biotechnol.

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SummaryIn this work total anthocyanin content (TAC), total fl avonoid content (TFC), total phenolic content (TPC) and minerals found in fi ve black glutinous rice cultivars (MS, SK, PY, PC and KK) from Thailand were analyzed. The antioxidant activity of anthocyanin-rich black glutinous rice bran extracts against nitric oxide radical (NO˙), superoxide radical (O 2˙¯) and lipid peroxyl radical (LOO˙) was also determined. Potential chemopreventive property of rice bran extract was screened based on cellular bioassays for phase II detoxification enzyme induction. Quinone reductase (QR) induction in murine hepatoma cells was used as a marker for this eff ect. Rice bran extract of cultivar KK had the highest TAC, of SK the highest TFC and of PC the highest TPC. The best antioxidants against NO˙, O 2˙¯ and LOO˙ were cultivars KK, MS, and SK, respectively. Overall, TAC, TFC and TPC had a combinatorial eff ect on the antioxidant activities of all extracts; none of them dominated. Minerals may not play a role in the antioxidant activity of the extracts because most correlations between them and the antioxidant activity were unpredictable. However, rice bran contained high mass fractions of some essential minerals on dry mass basis, including Zn (103-133 μg/g), Se (11-18 μg/g) and Cu (3.8-7.1 μg/g). Chemopreventive study indicated that PC cultivar was the most potent chemopreventor with the lowest concentration of an inducer needed to double the QR activity (CD value) of 0.7 μg/mL. These fi ndings showed that black glutinous rice bran is rich in phytochemicals and some essential minerals, and has a potential chemopreventive property.

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“…Therefore, the levels of these elements in rice should be investigated. Several methods have been widely used for the determination of elemental concentrations in rice samples including graphite furnace atomic absorption spectrometry (GFAAS) [6], x-ray fluorescence (XRF) [7], instrumental neutron activation analysis (INAA) [8][9], inductively coupled plasma optical emission spectrometry (ICP-OES) [8,10] and inductively coupled plasma mass spectrometry (ICP-MS) [5,11]. The Cs and Sr contents in rice samples analyzed by various techniques have been reported.…”

Section: Introductionmentioning

confidence: 99%

Determination of stable cesium and strontium in rice samples by inductively coupled plasma mass spectrometry

Srinuttrakul¹,

Yoshida

2017

J. Phys.: Conf. Ser.

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Abstract. For long-term radiation dose assessment models, food ingestion is one of the major exposure pathways to human. In general, the stable isotopes can serve as analogues of radioisotopes. In this study, rice samples were collected from 30 paddy fields in Si Sa Ket, Yasothon and Roi Et in the northeast of Thailand in November 2014. The concentrations of stable cesium (Cs-133) and strontium (Sr-88) in polished rice were determined by inductively coupled plasma mass spectrometry (ICP-MS). The standard reference material of rice flour (NIST 1568a) with spiked Cs and Sr was used to validate the analytical method. The concentration of Cs in polished rice from Si Sa Ket, Yasothon and Roi Et was 0.158  0.167 mg kg -1 , 0.090  0.117 mg kg -1 and 0.054  0.031 mg kg -1 , respectively. The concentration of Sr in polished rice from Si Sa Ket, Yasothon and Roi Et was 0.351  0.108 mg kg -1 , 0.364  0.215 mg kg -1 and 0.287  0.102 mg kg -1 , respectively. Comparison of the results with Japanese data before the Fukushima Di-ichi nuclear power plant accident showed that the concentrations of both Cs and Sr for Thai rice were higher than those for Japanese rice.

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Study of nutrients and toxic minerals in rice and legumes by instrumental neutron activation analysis and graphite furnace atomic absorption spectrophotometry

Cited by 71 publications

References 14 publications

Molybdate in Rhizobial Seed-Coat Formulations Improves the Production and Nodulation of Alfalfa

Molybdate in Rhizobial Seed-Coat Formulations Improves the Production and Nodulation of Alfalfa

Correlation of Phytochemical, Metal Contents and Antioxidant Activities of Black Glutinous Rice Bran and Potential Chemoprevention

Determination of stable cesium and strontium in rice samples by inductively coupled plasma mass spectrometry

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