Kanitha Tananuwong

Chulalongkorn University · Faculty of Science

Variations in starch pasting properties, considered an alternative potential quality classification parameter for rice starches, are directly controlled by the diverse starch molecular composition and structural features. Here, the starch characteristics of four rice cultivars (i.e., RD57, RD29, KDML105, and RD6) differing in pasting properties wer...

Background and Objectives Composite flour (CF) from cereals and legumes has been used to formulate plant‐based and/or gluten‐free food products. Fundamental knowledge regarding the properties of CF is required to formulate food products with desirable qualities. This study aimed to investigate the pasting properties, thermal properties, and viscoel...

This study aimed to evaluate the combined effects of 1-methylcyclopropene (1-MCP) and modified atmosphere (MA) storage on volatile compound production and quality parameters of durian fruit cv. Monthong during storage. Whole durian fruit harvested at the commercial maturity (75–80%) was fumigated with 0–1,000 nL L⁻¹ of 1-MCP for 12 hours. The fruit...

Effects of starch formulation, highly concentrated sucrose solution, and coconut milk on the stability of starch gels kept under chilled and frozen conditions were determined. Gels containing rice starch (RS), tapioca starch (TS) (RS:TS of 1 : 0.85), and hydroxypropyl distarch phosphate (HDP, 0-50% of total starch) were prepared from 15% starch sus...

Rice production systems and soil characteristics play a crucial role in determining its yield and grain quality. Two elite Thai rice cultivars, namely, KDML105 and RD6, were cultivated in two production systems with distinct soil characteristics, including net-house pot production and open-field production. Under open-field system, KDML105 and RD6...

Synthesis of large-ring cyclodextrins (LR-CDs) in any significant amount has been challenging. This study enhanced the LR-CDs production by Thermus filiformis amylomaltase (TfAM) enzyme by starch pretreatment using glycogen debranching enzyme from Corynebacterium glutamicum (CgGDE). CgGDE pretreated tapioca starch gave LR-CD conversion of 31.2 ± 2....

The water solubility of domperidone (DMP) could be improved by complexation with large ring cyclodextrins (LR-CDs). LR-CDs contain a relatively hydrophobic cavity that is capable of entrapping the molecules to form inclusion complexes. The complex formation capability of mixture LR-CDs having a degree of polymerization (DP) of 22–48, with DMP was i...

In-depth molecular structure and properties of cassava-derived resistant maltodextrins (RMDs) were determined. Cassava starch was dextrinized with 0.04% or 0.06% HCl at 120°C for 60–180 min to obtain resistant dextrins (RDs), which were further hydrolyzed by α-amylase to produce RMDs. Prolonging dextrinization duration decreased proportion of α-1,4...

This research aimed to evaluate effects of starch source, sucrose at high concentration and coconut milk on physical properties of chilled and frozen starch gels, considered as traditional Thai dessert models. Gel containing 15% w/w of starch was prepared from rice starch, tapioca starch or blended rice starch/tapioca starch (1:0.85 w/w) mixed with...

Background and objectives Variation in composition and functionality of glutinous rice starch greatly affects their industrial application. This study examined the starch compositional, structural and functional variability among five Thai glutinous rice cultivars, and the effect of molecular structure and composition on starch functionality was pi...

The objective of this research is to develop edible, fast dissolving, sealable whey protein isolate (WPI)-based films for packaging premeasured dry foods/ingredients that will dissolve and release their contents upon contact with water. Modifications to the structure and properties of WPI films via heat-denaturation and plasticizers were determined...

Physical, chemical and thermal properties, as well as molecular structure of cassava-based resistant dextrins prepared under different dextrinization conditions (0.04-0.10% HCl, 100-120ºC, 60-180 min) were determined. Increasing acid concentration, temperature and heating time resulted in the products with darker color, higher solubility, reducing...

Impact of drying process and storage conditions on properties of konjac glucomannan (KGM) and whey protein isolate (WPI) blend films was investigated. Hundred grams of film solution contained 0.4 g KGM, 3.8 g WPI and 1.5 g glycerol. During drying process, air velocity was varied to produce fast drying (3 h) and slow drying (15 h) in tray dryers und...

The objectives of this study were to monitor the changes in rice properties during aging and to compare kinetic parameters related to some of those changes. Paddy of three low amylose rice varieties was stored at ambient (30ºC ±2ºC) and chilled (8ºC ±2ºC) temperatures for 9 and 18 months, respectively. Aging led to a decrease in solid loss, peak vi...

Glass transition behavior, adsorption isotherm and crystallization of isomalt-hydrogenated starch hydrolysate (HSH) mixtures (0-20% HSH) and pure HSH were investigated. At similar solid content, Tg decreased as HSH concentration increased. Tg data at different solid contents were well-fitted with Gordon-Taylor equation (R²≥0.97). Adsorption isother...

Effects of packaging materials (metalized or polylactic acid, PLA, based pouches), storage temperatures (30-50°C) and time (up to 6 months) on quality of solar-dried banana were investigated. At 30°C in both packaging materials, change in moisture content, water activity (aw) and hardness were minimal while darkening of the surface color progressed...

Background: The use of biodegradable polymeric materials have been proposed as environmentally-friendly alternatives to petroleum-based packaging. In order to extend the shelf life of food products, these bioplastics must possess the appropriate barrier properties and food-package stability. In this study, the shelf life analyses of packaged baby...

This research determined the effects of starch concentration (3.5–5.0%w/w), and plasticizer [glycerol (0–30%w/w) or sorbitol (0-60%w/w)] on properties of mung bean starch (MBS) films. The result showed that increasing plasticizer concentration tended to decrease tensile strength (TS), elastic modulus (EM) and oxygen permeability (OP); but increase...

The impact of spice powders on physical, mechanical, thermal and barrier properties, and on storage stability, of whey protein isolate (WPI)-based films was determined. Films with added spices were prepared from casting solution containing 10 % (w/w) heat-denatured WPI, glycerol (WPI:glycerol of 3:2 w/w), sodium chloride (0.4 g/100 g solution), gar...

The objective of this research was to study the changes in physicochemical properties of rice during elevated temperature storage. Paddy of three rice cultivars with low amylose content (9–11%) and the other three with high amylose content (23–25%) was stored at 39.2 °C and 43.1% relative humidity up to 31 weeks. Drastic changes in moisture content...

The stability of biopolymeric multilayer film fabricated from poly(lactide) (PLA) and glycerol-plasticized whey protein isolate (WPI), PLA/WPI/PLA, at 4 °C, 25 °C, and 35 °C were examined. The PLA/WPI/PLA film showed small rates of decreasing in transparency and increasing total color difference. Storage at 35 °C caused the film to become stronger...

This work aimed to investigate freeze thaw stability of 20 wt% coconut oil (CtO) and corn oil (CnO)-in-water emulsions stabilized by 1 wt% of various types of sucrose esters and Tweens. Sucrose esters composed mainly of sucrose monostearate (S1670), sucrose monopalmitate (P1670), sucrose monolaurate (L1695), Tween 20 (TW20), Tween 60 (TW60), and Tw...

The aim of this work was to examine agronomic, compositional, and functional changes in rice (Oryza sativa L. cv. Nipponbare) grains from plants grown under low-to-moderate salinity stress. Plants were grown in sodium chloride-containing soil (2 or 4 dS/m2 electrical conductivity), which was imposed 4-weeks after transplant (called Seedling EC2 and...

Edible composite packaging has been developed by blending biocomponents for specific applications, aiming to take advantage of complementary functional properties or to overcome their respective flaws. The aim of this work was to study the effect of incorporation of whey protein isolate (WPI) on the properties of konjac glucomannan (KGM) based film...

Influences of the conditions of raw rice storage and cooking on parameters related to colour and antioxidant activities of organic hulled red fragrant rice were investigated. Raw rice samples were vacuum-packed in oriented polypropylene/aluminium/linear low-density polyethylene or nylon/linear low-density polyethylene pouches and stored at ambient...

High-pressure inactivation of Salmonella Typhimurium DMST 28913, eating quality, and microstructure of pressurized raw chicken breast meat was determined. The inoculated samples (approximately 7 log CFU/g initial load) were processed at 300 and 400 MPa, using pressurized medium of 25 to 35 °C during pressurization. Weibull model was well fitted to...

World-class wines are generally originated from homemade production based on a local expertise inherited through generations. In general, grape is the raw material that has been used for wine production and developed to be a worldwide alcoholic beverage. However, tropical plants can also be used for wine making and have gained more interest because...

Unlabelled: The effects of engineering higher levels of the High Molecular Weight Glutenin Dx5 subunit on starch characteristics in transgenic wheat (Triticum aestivum L.) grain were evaluated. This is important because of the interrelationship between starch and protein accumulation in grain, the strong biotechnological interest in modulating Dx5...

Important steps of postharvest handling of rice include threshing, kernel drying and storage. After threshing to remove the paddy kernels out of the panicle, fresh paddy still contain high moisture content (26-30% wet basis, wb). The wet paddy is susceptible to the deterioration caused by mold and insect growth, accumulation of thermal energy due t...

Macadamia is a tree nut indigenous to Australia, whose kernels can be processed into a wide variety of products, such as nut snacks, oil, and flours. Macadamia kernels are good sources of proteins, dietary fibers, vitamins, and minerals. Defatted or reduced-fat macadamia flours obtained as by-products of macadamia oil production can be nutrient-ric...

Unlabelled: Residual O(2) in a package headspace can be removed by an O(2)-absorbing sachet, which can be harmful if swallowed by the consumer, or by a chemically-active plastic packaging film, which is difficult to recycle. An edible, O(2)-absorbing film would avoid these disadvantages. The objective of our research was to assess the O(2)-scaveng...

Effects of packaging materials, storage temperatures and time on physicochemical properties of organic hulled red fragrant rice cv. Hom Daeng were investigated. The samples were vacuum-packed in oriented polypropylene/aluminium/linear low-density polyethylene or nylon/linear low-density polyethylene pouches and stored at ambient temperature or 15 °...

Aroma of fragrant rice greatly affects palatability as well as consumer acceptability. Loss of desirable volatile compounds such as 2-acetyl-1-pyrroline (2-AP) and increase in volatile lipid oxidation products in aged rice have been reported. The aim of this study was to monitor the changes in key volatile compounds of organic red fragrant rice cv....

This research aimed to determine optimum extraction condition of black glutinous rice crude extract and to determine its application as an antioxidant in fish oil enriched mayonnaise. Black glutinous rice flour was extracted twice with 70:30 acetone-water mixture (v/v) at pH 2 and 6.8 for 2, 4 and 8h of total extraction times. Total phenolic conten...

The aim of this work was to determine if the molecular structure of starch from tomato ( Solanum lycopersicum L.) is influenced by fruit physiology and carbohydrate metabolism. The effect of fruit size, fruit ripening behavior, and assimilate availability on starch granule accumulation was examined in nine tomato samples. The percentage of (14)C-gl...

The objective of this research was to study the chemical compositions, functional properties, and microstructure of partially defatted flours (PDF, 12-15% fat, dry basis (db)) and totally defatted flours (TDF, 1% db fat) from three macadamia cultivars, PY 741, DS 344, and DS 800, grown in Northern Thailand. The defatted flours were high in protein...

The interactions between water and starch during gelatinization as affected by water content, maximum heating temperature and amylopectin crystallinity pattern were investigated by Differential Scanning Calorimetry (DSC) and 1H NMR relaxation. DSC was used to measure additional unfrozen water (AUW) arising from gelatinization, reflecting enhanced w...

The effects of initial water content, maximum heating temperature, amylopectin crystallinity type, and annealing on the glass transition of starch gels were studied by differential scanning calorimetry (DSC). The glass transition temperatures of the frozen gels measured as the onset (T(g,onset)) or midpoint temperature (T(g,midpoint)), heat capacit...

Some physicochemical and rheological properties of jackfruit seed flour and starch, isolated from the flour were investigated. The flour had good capacities for water absorption (205%) and oil absorption (93%). Substitution of wheat flour with the seed flour, at the level of 5, 10 and 20% markedly reduced the gluten strength of the mixed dough. The...

Some physicochemical and rheological properties of jackfruit seed flour and starch, isolated from the flour were investigated. The flour had good capacities for water absorption (205%) and oil absorption (93%). Substitution of wheat flour with the seed flour, at the level of 5, 10 and 20% markedly reduced the gluten strength of the mixed dough. The...

Degree granted in Food Science. Thesis (Ph. D.)--University of California, Davis, 2004.