Investigation of flavonoid components and their associated antioxidant capacity in different pigmented rice varieties

Chen, Xiaoqiong; Yang, Ying; Yang, Xiaoli; Zhu, Guoxu; Lu, Xuanzong; Feng, Jian; Diao, Binqian; Yu, Shicong; Ali, Asif; Zhang, Hongyu; Xu, Peizhou; Liao, Yongxiang; Sun, Changhui; Zhou, Hao; Liu, Yutong; Wang, Yuping; Zhu, Jun; Xiang, Qianju; Wu, Xiaoyun

doi:10.1016/j.foodres.2022.111726

Cited by 30 publications

(17 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This does not agree with Tyagi et al [ 21 ], who reported a lower value for black rice. These results indicate that different black rice varieties have unique genetic profiles, resulting in variations in the expression and content of phenolic compounds [ 49 ]. It is well-known that secondary metabolite production increases under water stress [ 50 ], which corresponds to a mechanism of plant protection and acclimation in response to stress [ 47 , 50 ].…”

Section: Discussionmentioning

confidence: 99%

Assessing Grain Quality Changes in White and Black Rice under Water Deficit

Brunet-Loredo,

López-Belchí,

Cordero-Lara

et al. 2023

Plants

View full text Add to dashboard Cite

Rice is an essential diet component for a significant portion of the population worldwide. Due to the high water demand associated with rice production, improving water use efficiency and grain quality is critical to increasing the sustainability of the crop. This species includes rice varieties with diverse pigmentation patterns. Grain quality, including industrial, nutritional, and functional quality traits, of two black rice genotypes and a commercial white rice cultivar were evaluated in different locations and under different water regimes. Flooding produced higher grain weight compared to alternate wetting and drying irrigation. A high correlation was found between grain color, total phenolic content (TPC), and antioxidant activity. The black rice genotypes showed higher TPC levels and antioxidant capacity, mainly due to higher levels of cyanidin 3-O-glucoside. The phenolic profile varied between whole and polished grains, while mineral composition was influenced by location and irrigation regime. In turn, the environment influenced grain quality in terms of industrial and nutritional characteristics, with significant differences in quality between whole and polished grains. This study provides valuable information on the genotype–environment relationship in rice and its effect on grain quality, which could contribute to selecting genotypes for an appropriate environment.

show abstract

Section: Discussionmentioning

confidence: 99%

Assessing Grain Quality Changes in White and Black Rice under Water Deficit

Brunet-Loredo,

López-Belchí,

Cordero-Lara

et al. 2023

Plants

View full text Add to dashboard Cite

show abstract

“…Red RB is rich in catechin and epicatechin. The red and black RB extracts exhibited higher antioxidant activity than the white RB extract [ 70 ].…”

Section: Phytochemical Composition Of Rice Branmentioning

confidence: 99%

Composition, Microbiota, Mechanisms, and Anti-Obesity Properties of Rice Bran

Sivamaruthi

Alagarsamy²,

Thangaleela

et al. 2023

Foods

View full text Add to dashboard Cite

Rice is a major cereal crop and a staple food for nearly 50% of people worldwide. Rice bran (RB) is a nutrient-rich by-product of rice processing. RB is rich in carbohydrates, fibers, proteins, lipids, minerals, and several trace elements (phosphorus, calcium, magnesium, potassium, and manganese). The extraction process and storage have influenced RB extracts and RB oil’s quality. The RB composition has also varied on the rice cultivars. The color of RB indicates the richness of the bioactive compounds, especially anthocyanins. γ-oryzanol, tocopherols, tocotrienols, and unsaturated fatty acids are major components of RB oil. It has been established that RB supplementation could improve the host’s health status. Several preclinical and clinical studies have reported that RB has antioxidant, anticancer, anti-inflammatory, anticolitis, and antidiabetic properties. The beneficial biological properties of RB are partially attributed to its ability to alter the host microbiome and help to maintain and restore eubiosis. Non-communicable diseases (NCDs), including heart disease, diabetes, cancer, and lung disease, account for 74% of deaths worldwide. Obesity is a global health problem and is a major reason for the development of NCDs. The medical procedures for managing obesity are expensive and long-term health supplements are required to maintain a healthy weight. Thus, cost-effective natural adjuvant therapeutic strategy is crucial to treat and manage obesity. Several studies have revealed that RB could be a complementary pharmacological candidate to treat obesity. A comprehensive document with basic information and recent scientific results on the anti-obesity activity of RB and RB compounds is obligatory. Thus, the current manuscript was prepared to summarize the composition of RB and the influence of RB on the host microbiome, possible mechanisms, and preclinical and clinical studies on the anti-obesity properties of RB. This study suggested that the consumption of RB oil and dietary RB extracts might assist in managing obesity-associated health consequences. Further, extended clinical studies in several ethnic groups are required to develop dietary RB-based functional and nutritional supplements, which could serve as an adjuvant therapeutic strategy to treat obesity.

show abstract

“…Moreover, the amount and quality of protein is much better in pigmented rice as compared to non-pigmented rice. Chen et al (2022) compared pigmented and white rice grains at five different stages of growth and found 230 differently abundant proteins associated with several metabolic activities. The pigmented grains were shown to have lower concentrations of proteins involved in signalling pathways, redox homeostasis, photosynthesis, nitrogen fixation, and tocopherol synthesis.…”

Section: Nutritional Composition Of Pigmented Ricementioning

confidence: 99%

“…Due to the presence of flavonoids, terpenoids, steroids, and alkaloids, pigmented rice exhibits cytotoxic, anti-tumor, anti-inflammatory, antioxidant, and neuroprotective activities ( Goufo & Trindade, 2014 ). In a recent study on thetotal flavonoid content (TFC) of rice, it was found that black and red rice had a higher TFC when compared to white rice varieties ( Chen et al, 2022 ). Based on the amount of aromatic compounds, flavonoids can be classified into a wide range of groups such as chalcones, pro anthocyanidins, anthocyanins, flavones, flavonols, flavanones, and flavanonols ( Mbanjo et al, 2020 ).…”

Section: Nutritional Composition Of Pigmented Ricementioning

confidence: 99%

Explicating genetic architecture governing nutritional quality in pigmented rice

Sudan,

Urwat,

Farooq

et al. 2023

PeerJ

View full text Add to dashboard Cite

Rice is one of the most important staple plant foods that provide a major source of calories and nutrients for tackling the global hunger index especially in developing countries. In terms of nutritional profile, pigmented rice grains are favoured for their nutritional and health benefits. The pigmented rice varieties are rich sources of flavonoids, anthocyanin and proanthocyanidin that can be readily incorporated into diets to help address various lifestyle diseases. However, the cultivation of pigmented rice is limited due to low productivity and unfavourable cooking qualities. With the advances in genome sequencing, molecular breeding, gene expression analysis and multi-omics approaches, various attempts have been made to explore the genetic architecture of rice grain pigmentation. In this review, we have compiled the current state of knowledge of the genetic architecture and nutritional value of pigmentation in rice based upon the available experimental evidence. Future research areas that can help to deepen our understanding and help in harnessing the economic and health benefits of pigmented rice are also explored.

show abstract

Investigation of flavonoid components and their associated antioxidant capacity in different pigmented rice varieties

Cited by 30 publications

References 36 publications

Assessing Grain Quality Changes in White and Black Rice under Water Deficit

Assessing Grain Quality Changes in White and Black Rice under Water Deficit

Composition, Microbiota, Mechanisms, and Anti-Obesity Properties of Rice Bran

Explicating genetic architecture governing nutritional quality in pigmented rice

Contact Info

Product

Resources

About