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| 1 | Effects of Cooking on Anthocyanin Concentration and Bioactive Antioxidant Capacity in Glutinous and Non-Glutinous Purple Rice显示文摘Purple rice is a source of bioactive antioxidants for rice consumers. Loss of the major antioxidant compounds after a range of cooking processes was evaluated by measuring the changes in anthocyanin concentration(ATC) and antioxidant capacity(DPPH activity) of four non-glutinous and four glutinous genotypes. However, soaking in water prior to cooking generally decreased more ATC and antioxidant capacity in non-glutinous than in glutinous genotypes. Wet cooking(WC) and soaking before wet cooking(S-WC) led to lose almost all the ATC and antioxidant capacity with only slight variation between genotypes. In the glutinous genotype Pieisu, which had the highest raw rice ATC, ATC remained the highest when cooked by the WC method. By contrast, almost no ATC remained after WC and S-WC in the low ATC genotypes such as Kum Doi Saket. Overall, the loss of ATC was greater in non-glutinous than in glutinous genotypes for both WC and S-WC methods, but the reverse occurred for antioxidant capacity. WC using electric rice cooker retained higher ATC than the pressure cooking. Thus, for genotypes with high ATC and antioxidant capacity, the selection of cooking method is critical for retaining and stabilizing rice quality. | Supaporn YAMUANGMORN Bernard DELL Chanakan PROM-U-THAI | 2018 | Rice science2018，25，5： | 3 |
| 2 | Materials and mechanical properties of pretreated coir-based green composites显示文摘 | Chanakan Asasutjarit Sarocha Charoenvai Jongjit Hirunlabh Joseph Khedari | 2009 | Composites Part B2009，，7： | 1 |
| 3 | Variation in Grain Quality of Upland Rice from Luang Prabang Province, Lao PDR显示文摘Luang Prabang Province is located within the area recognized as the center of rice(Oryza sativa L.) diversity in Lao PDR. This study reported on grain quality characteristics of 60 upland rice seed samples sharing 49 variety names collected from 6 villages in Luang Prabang in 2015. Most of the samples has non-pigmented pericarp, while red pericarp was found in four samples and purple in five samples. Almost all of the samples were of large grain type, with glutinous endosperm in 70% and non-glutinous endosperm in 30%. The brown(unpolished) rice was found with a wide range of grain nutritional quality, including protein(9.2% ± 0.9%), Fe(15.9 ± 6.9 mg/kg), Zn(19.6 ± 2.1 mg/kg), anthocyanin(0.774 ± 0.880 mg/g), and anti-oxidative capacity(2.071 ± 1.373 mg/g). The varieties sharing similar names had similar morphological characteristics but varied in nutritional concentration, with required confirmation in genetic variation analysis. This study found that some rice varieties with high grain quality may benefit the farmers directly or could be used in varietal improvement programs. | Vua XIONGSIYEE Benjavan RERKASEM Jeeraporn VEERADITTAKIT Chorpet SAENCHAI Sittichai LORDKAEW Chanakan Thebault PROM-U-THAI | 2018 | Rice science2018，25，2： | 1 |
| 4 | Iron for- tiffed parboiled rice- A novel solution to high iron density in rice-based diets 显示文摘 | Chanakan Prom-u-thai Shu Fukai Godwin I D etal | 2008 | Food Chemistry2008，110，2： | 1 |
| 5 | The bio availability of iron fortified in whole grain parboiled rice显示文摘 | Chanakan Prom-u thai Glahnb R P Cheng Zhiqiang | 2009 | Food Chemistry2009，112，4： | 1 |
| 6 | Antioxidant Activities and Characterization of Polyphenols from Selected Northern Thai Rice Husks: Relation with Seed Attributes显示文摘Rice production generates a significant amount of agricultural waste. This study aimed to give results related to the existence of antioxidant phenols in agricultural waste of selected Northern Thai rice varieties. The antioxidant activities, contents of total flavonoids and phenolic compounds in the ethanolic rice husk extract were evaluated. The highest antioxidant activities were found in the variety PES1CMU, with 2,2’-azinobis-3-ethyl-benzothiazoline-6-sulfonic acid and 2,2-diphenyl-1-picrylhydrazyl as 679.66 and 4.16 mmol/(L·g) trolox equivalent, respectively, ferric reducing antioxidant power as 0.87 mmol/(L·g) Fe2+, total phenolic content as 29.90 mmol/(L·g) gallic acid and total flavonoid content as 12.16 mg/g catechin equivalent. Polyphenol compounds were identified mainly by standard polyphenols using the liquid chromatography mass spectrometry, with the highest contents of phytic acid, o-coumaric acid, naringin and kaempferol. The non-glutenous and wetland ecotypes of rice husk samples were the richest in antioxidant activities and polyphenol contents characterized by using principal component analysis. The glutenous rice husk contained higher antioxidant activities than the rest. Interestingly, quercetin is a significant phenolic compound that positively correlated with the overall antioxidant activities of rice husk. This finding will be relevant for future application of rice husk antioxidant components in the production of functional ingredients as well as for the food and pharmaceutical industries. | Jiratchaya WISETKOMOLMAT Chaiwat ARJIN Surat HONGSIBSONG Warintorn RUKSIRIWANICH Chutamat NIWAT Pimsiri TIYAYON Sansanee JAMJOD Supapohn YAMUANGMORN Chanakan PROM-U-THAI Korawan SRINGARM | 2023 | Rice science2023，30，2： | 1 |
| 7 | The Bioavailability of Iron Fortified In Whole Grain Parboiled Rice 显示文摘 | Chanakan Prom-u-thai Shu Fukai Ian D Godwin | 2009 | Food Chemistry2009，，112： | 1 |
| 8 | Iron fortified parboiled rice A novel solution to high iron density in rice-based diets显示文摘 | Prom-u-thai Chanakan Fukai Shu Godwin Ian D | 2008 | Food Chemistry2008，110，2： | 1 |
| 9 | Improve Anthocyanin and Zinc Concentration in Purple Rice by Nitrogen and Zinc Fertilizer Application显示文摘Zinc(Zn)is an essential micronutrient for plant growth and development,and anthocyanin is a secondary metabolite compound generally produced under stress conditions;both have benefits to human health.Rice is a staple food crop for most of the world’s population,and purple rice is well known as a natural source of Zn and anthocyanins,but their stability depends upon many factors.This review focuses on the opportunity to increase Zn and anthocyanin compounds in purple rice grains via Zn and nitrogen(N)management during cultivation.Variation in grain Zn concentration and anthocyanin compounds is found among purple rice varieties,thus presenting a challenge for breeding programs aiming at high grain Zn and anthocyanin contents.Genetic engineering has successfully achieved a high-efficiency vector system comprising two regulatory genes and six structural anthocyanin-related genes driven by endosperm-specific promoters to engineer purple endosperm rice that can provide new high-anthocyanin varieties.Grain Zn and anthocyanin concentrations in rice can also be affected by environmental factors during cultivation,e.g.,light,temperature,soil salinity and nutrient(fertilizer)management.Applying N and Zn fertilizer is found to influence the physiological mechanisms of Zn absorption,uptake,transport and remobilization to promote grain Zn accumulation in rice,while N application can improve anthocyanin synthesis by promoting its biosynthesis pathway via the use of phenylalanine as a precursor.In summary,there is an opportunity to improve both grain Zn and anthocyanin in purple rice by appropriate management of Zn and N fertilizers during cultivation for specific varieties. | Suchila UTASEE Sansanee JAMJOD Sittisavet LORDKAEW Chanakan PROM-U-THAI | 2022 | Rice science2022，29，5： | 0 |
| 10 | Abiotic and Biotic Factors Controlling Grain Aroma along Value Chain of Fragrant Rice:A Review显示文摘The aroma of fragrant rice is one of the grain quality attributes that significantly influenceconsumer preferences and prices in world markets. The volatile compound 2-acetyl-1-pyrroline (2AP) isrecognized as a key component of the aroma in fragrant rice. The variation in grain 2AP content amongvarious fragrant rice varieties is associated with the expression of the badh2 gene, with 19 alleles havingbeen identified so far. The grain 2AP content is strongly influenced by environmental and managementfactors during cultivation as well as post-harvest conditions. This review pinpointed the major abiotic andbiotic factors that control grain 2AP content. Abiotic factors refer to water, temperature, light quality,fertilizer application (both macro- and micro-nutrients), and soil properties, including salinity, while bioticfactors include microorganisms that produce aromatic compounds, thus influencing the grain aroma infragrant rice. Post-harvest management, including storage and drying conditions, can significantly impactthe grain 2AP content, and proper post-harvest conditions can intensify the grain aroma. This reviewsuggests that there are rice varieties that can serve as potential sources of genetic material for breedingrice varieties with high grain aroma content. It offers an overview of recent research on the major factorsaffecting the aroma content in fragrant rice. This knowledge will facilitate further research on theproduction of high-quality rice to meet the demands of farmers and consumers. | Ayut KONGPUN Tonapha PUSADEE Pennapa JAKSOMSAK Kawiporn CHINACHANTA Patcharin TUIWONG Phukjira CHAN-IN Sawika KONSAENG Wasu PATHOM-AREE Suchila UTASEE Benjamaporn WANGKAEW Chanakan PROM-U-THAI | 2024 | Rice science2024，31，2： | 0 |
| 11 | Effect of Sulfur Fertilization on Productivity and Grain Zinc Yield of Rice Grown under Low and Adequate Soil Zinc Applications显示文摘This study aimed to investigate the responses in rice(Oryza sativa cv.Osmancik 97)production and grain zinc(Zn)accumulation to combined Zn and sulfur(S)fertilization.The experiment was designed as a factorial experiment with two Zn and three S concentrations applied to the soil in a completely randomized design with four replications.The plants were grown under greenhouse conditions at low(0.25 mg/kg)and adequate(5 mg/kg)Zn rates combined with S(CaSO_(4)·2H_(2)O)application(low,2.5 mg/kg;moderate,10 mg/kg,and adequate,50 mg/kg).The lowest rate of S at adequate soil Zn treatment increased grain yield by 68%compared with the same S rate at low Zn supply.Plants with the adequate S rate at low Zn and adequate Zn supply produced the highest grain yield,with increases of 247%and 143%compared with low S rate at low Zn and adequate Zn supply,respectively.The concentration of grain Zn and S responded differently to the applied S rates depending on the soil Zn condition.The highest grain Zn concentration,reaching 41.5 mg/kg,was observed when adequate Zn was supplied at the low S rate.Conversely,the adequate S rate at the low soil Zn conditions yielded the highest grain S concentration.The total grain Zn uptake per plant showed particular increases in grain Zn yield when adequate S rates were applied,showing increases of 208%and 111%compared with low S rate under low and adequate soil Zn conditions,respectively.The results indicated that the synergistic application of soil Zn and S improves grain production and grain Zn yield.These results highlight the importance of total grain Zn yield in addition to grain Zn concentration,especially under the growth conditions where grain yield shows particular increases as grain Zn is diluted due to increased grain yield by increasing S fertilization. | Kankunlanach KHAMPUANG Nanthana CHAIWONG Atilla YAZICI Baris DEMIRER Ismail CAKMAK Chanakan PROM-U-THAI | 2023 | Rice science2023，30，6： | 0 |
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