Black rice

About: Black rice is a research topic. Over the lifetime, 2548 publications have been published within this topic receiving 20840 citations. The topic is also known as: purple rice.

Method for breeding functional formula rice varieties

Abstract: The invention discloses a method for breeding functional formula rice varieties, belonging to the technical field of special rice breeding. The method is characterized by comprising the following steps of selecting a rice variety with larger extending area and good quality in production as the recurrent parent, crossing the recurrent parent with black rice, purple rice, red rice, glutinous rice and giant embryo rice respectively, backcrossing the offsprings with the recurrent parent, breeding the near-isogenic lines which have agronomic traits similar to the agronomic traits of the recurrent parent and respectively have the traits of the black rice, purple rice, red rice, glutinous rice and giant embryo rice and mixing the seeds in proportion to prepare the seeds for production of the formula rice. The method has the following beneficial effects that after the formula rice varieties bred by the method are planted, the shapes of plants and leaves and the agronomic traits are neat and consistent; the rice obtained by grinding unhulled rice can simultaneously contain the five functional rice, namely the black rice, the purple rice, the red rice, the glutinous rice and the giant embryo rice; the functional formula rice can be produced by planting the seeds; the production method is simple and is high in efficiency and good in benefits; and the produced high nutrition functional formula rice integrates color, aroma, taste and nutrition curative effect and has good health care function.

Polygonum multiflorum thumb black sesame paste and production method thereof

Abstract: The invention provides a formula and a production method of a polygonum multiflorum thumb black sesame paste The polygonum multiflorum thumb black sesame paste is prepared by using prepared polygonum multiflorum thumb powder as main raw material, using black sesame, black soya bean, millet, black rice, glutinous rice, walnut kernel, peanut kernel, red date, oat and barley as auxiliary materials, letting the raw materials be subject to carefully selecting, washing, drying, frying, and grinding into powder, and finally mixing according to a certain proportion The black sesame paste disclosed herein by using ultrafine grinding is benefit for human absorption, has nourishing blood vessels, blackening hair, promoting hair growth, nourishing brain and developing intelligence, and is especially suitable for middle aged and old people to eat

Genetic Architecture and Anthocyanin Profiling of Aromatic Rice From Manipur Reveals Divergence of Chakhao Landraces.

Abstract: Aromatic rice of Manipur popularly known as Chakhao is a speciality glutinous rice, for which protection under geographical indication in India has been granted recently. The agronomic and nutraceutical variability of the Chakhao rice germplasm is yet to be genetically characterized. To address this gap, characterization of ninety-three landraces for agro-morphological traits, grain pigmentation, antioxidant properties, and molecular genetic variation was carried out to unravel their population genetic structure. Two major groups were identified based on pericarp color, namely, purple and non-purple, which showed a significant variation for plant height, panicle length, and grain yield. Molecular marker analysis revealed three subpopulations that could be associated with pericarp pigmentation. Deep purple genotypes formed POP3, japonica genotypes adapted to hill environment formed POP1, while POP2 comprised of both indica and aus types. Liquid chromatography-mass spectrometry (LC-MS) analysis revealed two major anthocyanin compounds in pigmented rices, namely, cyanidin-3-O-glucoside (C3G) and peonidin-3-O-glucoside (P3G). The total anthocyanin content among pigmented genotypes ranged from 29.8 to 275.8 mg.100g-1 DW. Total phenolics ranged from 66.5 to 700.3 mg GAE.100g-1 DW with radical scavenging activity (RSA) varying between 17.7 and 65.7%. Anthocyanins and phenolics showed a direct relationship with RSA implying the nutraceutical benefits of deep pigmented rice such as Manipur black rice. Aromatic rices from Manipur were found to be genetically diverse. Therefore, efforts need to be made for maintaining the geographic identity of these rice and utilization in breeding for region-specific cultivar improvement.

Phytochemical Profiles and Antioxidant Capacity of Pigmented and Non-pigmented Genotypes of Rice (Oryza sativa L.)

Abstract: Pigmented rice (Oryza sativa L.) genotypes become increasingly important in the agroindustry due to their bioavailable compounds that have the ability to inhibit the formation and/or to reduce the effective concentration of reactive cell-damaging free radicals. This study aimed at determining the concentrations of free, and bound phytochemicals and their antioxidant potential (DPPH and ABTS assays) as well as the vitamin E and carotenoids contents of non-pigmented and pigmented rice genotypes. The results confirmed that the content of total phenolics and flavonoids contents, as well as the antioxidant capacity (DPPH and ABTS assays) of pigmented rice was several-fold greater than non-pigmented ones (4, 4, 3 and 5 times, respectively). Compounds in the free fraction of pigmented rice had higher antioxidant capacity relative to those in the bound form, whereas the non-pigmented rice cultivars exhibited the opposite trend. Ferulic acid was the main phenolic acid of all rice genotypes, whereas black rice contained protocatechuic and vanillic acids in higher contents than red rice and non-pigmented rice genotypes. For vitamin E (tocopherols and tocotrienols) and carotenoids (lutein, zeaxanthin and β-carotene) contents, no obvious concentration differences were observed between non-pigmented and pigmented rice, with the black rice exhibiting the highest carotenoid content. Overall, pigmented rice genotypes contain a remarkable amount of bioactive compounds with high antioxidant capacity; therefore, they have great potential as a source of bioactives for developing functional food products with improved health benefits.