Melatonin Profile during Rice (Oryza Sativa) Production

Setyaningsih, Wiwik; Hidayah, Nikmatul; Saputro, Irfan E.; Lovillo, Miguel Palma; Barroso, Carmelo Garcı́a

doi:10.12720/joaat.1.1.60-64

Cited by 4 publications

(6 citation statements)

References 6 publications

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“…We also determined the levels of melatonin and tryptophan in rice and corn extracts. Previously, there was a study revealing the level of melatonin content in black rice at 140 μg/kg (Manchester et al 2000;Hernandez-Ruiz & Arnao 2008;Setyaningsih et al 2014). Our results demonstrated that the highest levels of melatonin content were detected in black rice extracts from ethanol fraction at 396.38 μg/kg.…”

Section: Discussionsupporting

confidence: 56%

Neuroprotective Effect of Rice and Corn Extracts Against H2O2-Induced Neurotoxicity in HT22 Murine Hippocampal Neuronal Cells

Tencomnao¹

2016

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ABSTRAK Kerosakan neuron aruhan stress oksidatif yang disebabkan oleh akumulasi hydrogen peroksida (H 2 O 2 ) dalam sel telah ditunjukkan terlibat dalam penyakit neurodegeneratif. Beras dan jagung boleh menjadi sumber anti-oksidan dengan kehadiran fitokimia seperti melatonin dan triptofan untuk melawan sepsis reaktif oksigen (ROS). Melatonin telah diketahui boleh meningkatkan ekspresi gen brainderived neurotrophic factor (BDNF

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Section: Discussionsupporting

confidence: 56%

Neuroprotective Effect of Rice and Corn Extracts Against H2O2-Induced Neurotoxicity in HT22 Murine Hippocampal Neuronal Cells

Tencomnao¹

2016

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“…Conversely, this step includes a bran removal process that causes a disadvantage due to the loss of melatonin from the grain, as shown by studies of the melatonin profile during rice production. 44…”

Section: Journal Of Agricultural and Food Chemistrymentioning

confidence: 99%

Determination of Melatonin in Rice (Oryza sativa) Grains by Pressurized Liquid Extraction

Setyaningsih

Saputro

Barbero

et al. 2015

J. Agric. Food Chem.

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Melatonin provides a number of benefits for human health. The study reported here concerns the optimization, validation, and application of analytical pressurized liquid extraction and high-performance liquid chromatography coupled to a fluorescence detector for the determination of melatonin in rice grains. The factors that are most likely to affect the extraction efficiency were optimized with a 2 fractional factorial design. The optimum extraction conditions were achieved by applying 70% EtOAc in MeOH at 200 °C and 200 atm for a static time of 5 min in two cycles with 50% flushing and a 60 s purge to extract a 2.5 g rice sample. The method validation ensured excellent linearity, limit of detection, limit of quantification, precision, and recovery. Furthermore, the method was applied to various rice products composed of polished, whole grain, aromatic, black, black glutinous, red, and parboiled rice. All kinds of pigmented rice grains showed high levels of melatonin (>100 μg kg ), and the highest levels were found in red rice.

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“…Hence, rice is extremely important, not only to satisfy hunger but also to provide nutrients for the population of Indonesia. Several health-benefited substances have been identified in rice and these include melatonin (Setyaningsih et al, 2014). Melatonin (N-acetyl-5-methoxytryptamine) is an indoleamine that is synthesized from the essential amino acid L-tryptophan.…”

Section: Introductionmentioning

confidence: 99%

“…The whole grain (brown) rice, as well as pigmented (red and black) varieties contain higher levels of melatonin than the polished (white) grain. The level of melatonin in these unpolished rice grains is maintained in the final product because there is no bran removal process (Setyaningsih et al, 2014;Setyaningsih et al, 2016). Henceforth, consumption of whole grain (brown, red, and black) rice has additional functional benefit.…”

Section: Introductionmentioning

confidence: 99%

Consumers’ willingness to pay for functional rice: a survey from Indonesia

Annur¹,

Nugrohoningtyas²,

Rodríguez‐Dodero³

et al. 2020

Food Res.

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Rice, especially the pigmented varieties, contains a higher level of melatonin (N-acetyl-5- methoxytryptamine), which is used in treatment for sleeping disorders and for improving mood. It has potent antioxidant properties, anti-obesity, and anti-inflammatory, thus potential as the basis for functional food development. The purpose of the study was to examine how the various rice attributes and demographic characteristics affect the willingness to pay of Indonesian consumers on functional rice. Multi-Factor Categorical Design (MFCD) and Balanced Incomplete Block Design (BIBD) have been used to study multiple non-quantitative factors, including different rice varieties and health benefits information on the label (x1, 3 levels: white rice, brown rice-label, and red rice-label), price (x2, 2 levels: low and high), and rice producers (x3, 3 levels: international brand, established national brand, and new national brand). Data collection was administered through an online questionnaire survey to 204 respondents, living in four major Indonesian islands: Java, Bali, Sumatra, and the Moluccas. The results showed that despite the health benefits of the melatonin contained in the whole brown and red rice, Indonesian consumers still preferred conventional white rice over the aforementioned rice varieties. Price was recognized as the main attribute affecting the selection of functional rice, whilst rice producers gave less impact on willingness to pay. The results indicated that cultural value, consumers’ knowledge of melatonin, consumers’ health status, and consumers’ income were the sources of heterogeneity in consumers’ willingness to pay for functional rice.

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Melatonin Profile during Rice (Oryza Sativa) Production

Cited by 4 publications

References 6 publications

Neuroprotective Effect of Rice and Corn Extracts Against H2O2-Induced Neurotoxicity in HT22 Murine Hippocampal Neuronal Cells

Neuroprotective Effect of Rice and Corn Extracts Against H2O2-Induced Neurotoxicity in HT22 Murine Hippocampal Neuronal Cells

Determination of Melatonin in Rice (Oryza sativa) Grains by Pressurized Liquid Extraction

Consumers’ willingness to pay for functional rice: a survey from Indonesia

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