• Thumbnail

    Sensory properties and consumer acceptance of imported and domestic sliced black ripe olives 

    Kamolnate Kitsawad (Institute of Food Technologists, 2012)

    Table olives are healthy and nutritious products with high contents of monounsaturated fatty acids, phenolics, vitamins, minerals, and fiber. Understanding sensory cues affecting consumer preferences would enable the increase of olive consumption. The objectives of this study were to characterize the sensory properties of commercial sliced black ripe olives from different regions, including California, Egypt, Morocco, Portugal, and Spain, and to examine the preferences of California consumers for sliced black ripe olives. Sensory profiles and ...
  • Thumbnail

    Use of Rice Hull Hydrolyzate in the Cultivation of Lactobacillus acidophilus 

    Tatsaporn T.; Nikapong Puanglamyai (2012)

    This project aims to minimize the cost of production of live L. acidophilus by replacing the expensive carbon source in the fermentation medium with the rice hull hydrolyzate and compare the growth efficiency of the microbe in the rice hull formulated medium with the rich medium (de Man Rogosa Sharpe or MRS). Rice hull was hydrolyzed with diluted H2 SO4 and HCl at various concentrations 0.25, 0.5 and 1% v/v at 120 o C for 30 minutes. The hydrolyzate was further overliming with Ca(OH) 2 and filter through the diatomaceous earth. ...
  • Thumbnail

    Antibacterial activity of Chrysanthemum indicum, Centella asiatica and Andrographis paniculata on Bacillus cereus and Listeria monocytogenes under Low pH Stress 

    Patchanee Yasurin; Nateepat Pitinidhipat; Christina Vania Utami (2012)

    Classic food preservation methods do not guarantee to inhibit Bacillus cereus and Listeria monocytogenes growth. The application of natural antibacterial agent is an alternative way to control their growth. Asia herbs, Chrysanthemum indicum, Centella asiatica, and Andrographis paniculata were used in this experiment to test their antibacterial activity under low pH stress. Their antibacterial activities of 95% ethanolic crude extracts were tested on B. cereus and L. monocytogenes 10403S under different low pH stress by agar disc diffusion ...
  • Thumbnail

    Properties and applications of different probiotic delivery systems 

    Wunwisa Krasaekoopt (2012)

    Probiotic products should contain and maintain viable cells during the product shelf life at least above therapeutic minimum level for the benefit of consumers. Due to their generally poor viability and stability in food products, especially in fermented dairy products, as well as in the host gastrointestinal tract, various microencapsulation techniques for probiotics have been developed in recent years to overcome these issues. This chapter describes the benefit of microencapsulation, various encapsulation techniques used to encapsulate probiotics ...
  • Thumbnail

    Natural antibacterial activity of Thai curry paste in Thai red curry-water base (Kang-Pa) Model on Salmonella enterica 4, 5, 12: i: - (human) and Salmonella enteric Enteritidis (human) 

    Patchanee Yasurin (2013)

    Natural antibacterial is now a very interesting food safety trend. The investigation on the food having antibacterial activity itself, as functional food, becomes more dynamic. Salmonella sp. is a food pathogen which has been reported its outbreaks frequently in variety of foods. Thai red curry (Kang-Pa) is a Thai cultural dish and become worldwide well-known menu. The Thai curry paste, Thai red curry main ingredients, compose of seven herbs including Capsicum annuum (Red chili), Cymbopogon citrates (Lemongrass), Alpinia galangal (Galangal), ...
  • Thumbnail

    Natural antibacterial activity of Thai curry paste in Thai red curry (Kang-Kati) model against Listeria monocytogenes 10403S 

    Patchanee Yasurin; Thidarat Udchachonand (Rajamangala University of Technology Phra Nakhon, 2013)

    In 2012, outbreak-associated strains of Listeria monocytogenes have been reported to CDC. Foods as natural antibiotics itself might be considered as an alternative for food safety. Thai red curry is a Thai cultural dish which has become well-known worldwide for having fresh coconut milk and red curry paste as main ingredients. The main ingredients of red curry paste include various types of herbs: Capsicum annuum (chili), Citrus hystrix (Kaffir lime), Cuminum cyminum L. (Cumin), Allium ascalonicum L. (Shallot), Allium sativum (Garlic), ...
  • Thumbnail

    Stability of Orange Oil-in-Water Emulsions Prepared by Multilayer Membranes 

    Suwimon Ariyaprakai; Qi, Wu Jai (2013)

    Due to the small molecular size of orange oil, primary orange oil–in-water emulsion can easily undergo Ostwald ripening destabilization. To improve the stability of orange oil emulsion, multilayer emul- sion was prepared using Citrem as emulsifier and gelatin as coated biopolymer. Firstly, primary emulsion containing 20 wt% orange oil and 0.4 wt% Citrem was produced. Since Citrem was an anionic emulsifier, the primary emulsion had a negative charge of ~ -57mV. Then, the primary emulsion was suspended in 0.5 wt% gelatin aqueous solution ...
  • Thumbnail

    Interfacial and emulsifying properties of sucrose ester in coconut milk emulsions in comparison with Tween 

    Suwimon Ariyaprakai; Tanachote Limpachoti; Pasawadee Pradipasena (2013)

    In this study, sucrose esters were presented as a promising alternative to petrochemically synthesized Tweens for application in coconut milk emulsions. The interfacial and emulsifier properties of sucrose ester (SE), mainly sucrose monostearate, had been investigated in comparison with Tween 60 (TW), an ethoxylate surfactant. The interfacial tension measurement showed that SE had a slightly better ability to lower the interfacial tension at coconut oilewater interface. These surfactants (0.25 wt%) were applied in coconut milk emulsions with ...
  • Thumbnail

    Microencapsulation of Probiotics in Hydrocolloid Gel Matrices: A Review 

    Wunwisa Krasaekoopt (2013)

    The use of hydrocolloid gel matrices to encapsulate probiotics is of interest due to their gentle and simplicity of gel formation as well as mild condition used. This technique enhances the viability of entrapped cells during the product shelf life at least above therapeutic minimum level as well as in the gastrointestinal tract to ensure the health benefits of consumers. This review describes the advantages of microencapsulation, hydrocolloid gel matrices such as alginate, carrageenan and whey protein, microencapsulation processes, special ...
  • Thumbnail

    Microbial Biofilm in the industry 

    Tatsaporn Todhanakasem (2013)

    Biofilms represent negative and positive attributes in the industries. Biofilm is a functional consortium of microorganisms attached to either biotic or abiotic surfaces and embedded under the extracellular polymeric substances (EPS). Spoilage and pathogenic microorganisms can develop biofilms on food industrial surfaces that can lead to food spoilage and disease transmission when the inappropriate clean up and control have been applied in the food industies. However, single and mixed species of microbial biofilms also represent tremendous ...
  • Thumbnail

    โอกาสความเป็นไปได้ของการใช้เทคโนโลยีพลังงานชีวภาพในประเทศไทย 

    พัชนีย์ ยะสุรินทร์; มาลินี ศรีอริยนันท์ (2014)

    ในปัจจุบันความต้องการใช้พลังงานทั้งในภาคอุตสาหกรรมและครัวเรือนเพิ่มขึ้นทุกปี จึงต้องพึ่งพาการนำเข้าพลังงานจากต่างประเทศเป็นหลัก พลังงานที่ใช้ส่วนใหญ่เป็นเชื้อเพลิงซากดึกดำบรรพ์ (Fossil Fuels) บทความวิชาการฉบับนี้แสดงให้เห็นถึงสถานการณ์พลังงานและการพัฒนาการผลิตพลังงานชีวภาพ (Biofuel) ของประเทศไทย รวมถึงโอกาสความเป็นและเทคโนโลยีได้ในการผลิตพลังงานชีวภาพ โดยเฉพาะการผลิตไบโอดีเซลจากมวลชีวภาพลิกโนเซลลูโลสที่ได้มาจากวัสดุเหลือทิ้งทางการเกษตรในประเทศไทยและผลิตพลังงานจากกระบวนเมตาบอลิซึมของกรดไขมันในแบคทีเรีย ซึ่งช่วยลดการพึ่งพาการนำเข้าพลังงานจากต่างประเทศ
  • Thumbnail

    Combining means-end chain analysis and the portrait value questionnaire to research the influence of personal values on food choice 

    Kamolnate Kitsawad (Elsevier Ltd., 2014)

    Personal values can be measured using quantitative or qualitative methods. This paper aims to investi- gate the attribute-consequence-value patterns collected from means-end chain analysis and to examine their relationship to personal value domains from Schwartz value theory measured through the use of the Portrait Value Questionnaire. The study was performed on two product categories, potato chips and orange juice, in which two value segments of opposing value domains were found, Conservatism and Openness to change clusters. There was consistency ...
  • Thumbnail

    Determination of suitable palate cleanser for spicy tom yum soup 

    Kamolnate Kitsawad (2014)

    Palate cleansers are required in sensory tests as they help improve the accuracy for sensory responses especially for foods containing strong flavour. The objective of this study is to determine a suitable palate cleanser that can be used to relief spiciness in a Thai dish, tom yum soup. The untrained judges rated the spiciness of three levels of spicy tom yum soups before and after using five palate cleanser strategies, water, bread, unsweetened milk, 10 percent sucrose and nothing. One palate cleanser strategy was used per session, thus the ...
  • Thumbnail

    Review: antibacterial, antioxidant and chemical profile of centella asiatica 

    Supawan Rattanakom; Patchanee Yasurin (2014)

    Plants have been used since ancient times whether as foods/seasoning or medicinal purposes. The used of plants for medicinal purposes can be found almost every parts of the world; from Africa to Europe. Nowadays, there are increasing trends of using natural products. From the discovery that effective life span of any antibiotic is limited. Scientists try to discover alternatives. One of the sources is from plants. As they have an almost limitless ability to synthesize aromatic substances especially plant secondary metabolites. Most of plant ...
  • Thumbnail

    Biodegradable human serum albumin nanoparticles as contrast agents for the detection of hepatocellular carcinoma by magnetic resonance imaging 

    Waralee Watcharin; Schmithals, Christian; Pleli, Thomas; Koberle, Verena; Korkusuz, Hudayi; Huebner, Frank; Zeuzem, Stefan; Korf, Hans W.; Vogl, Thomas J.; Rittmeyer, Claudia; Terfort, Andreas; Piiper, Albercht; Gelperina, Svetlana; Kreuter, Jorg (Elsevier, 2014)

    Tumor visualization by magnetic resonance imaging (MRI) and nanoparticle-based contrast agents may improve the imaging of solid tumors such as hepatocellular carcinoma (HCC). In particular, human serum albumin (HSA) nanoparticles appear to be a suitable carrier due to their safety and feasibility of function- alization. In the present study HSA nanoparticles were conjugated with gadolinium diethylenetriamine- pentaacetic acid (Gd-DTPA) using carbodiimide chemistry. The nanoparticles had a uniform spherical shape and a diameter of 235 ± 19 nm. For ...
  • Thumbnail

    Microencapsulation of Litsea cubeba Essential Oil in β-Cyclodextrin Using Paste and Co-Precipitation Methods 

    Elizei, Pooyan Shakouri; Wunwisa Krasaekoopt (2014)

    Microencapsulation of Litsea cubeba essential oil (LCEO) with β-cyclodextrin (BCD) was carried out using the paste and co-precipitation methods at various oil concentrations and ratios of LCEO to BCD adapted from a central composite design to determine the effect of these factors on the microencapsulation efficiency, microencapsulation yield, surface oil and recovery of the finished product. In addition, the effect of different levels of water activity and temperature on the oxidative stability of the powder was investigated. Treatment 4 ...
  • Thumbnail

    Comparison of sensory properties of freshly harvested and 1-year storage Thai rice 

    Aussama Soontrunnarudrungsri (Agro-Industry, Chiang Mai University, 2014)

    Thailand is a major producer and world supplier of rice, both aromatic and non-aromatic varieties. Rice sold as “new crop” shortly after it is harvested generally commands higher prices. The study compared differences in sensory properties of various aromatic (Khao Dawk Mali 105, RD 15, Pathum Thani 1) and non- aromatic (Chai Nat 1, Phitsanulok 2, Suphan Buri 1) rice varieties and differences in fresh rice and rice stored for 1 year. Floral, popcorn, and sewer/animal flavors were found in both rice samples but jasmine rice had higher intense of ...
  • Thumbnail

    Biofilm production by Zymomonas mobilis enhances ethanol production and tolerance to toxic inhibitors from rice bran hydrolysate 

    Tatsaporn Todhanakasem; Atit Sangsutthiseree; Kamonchanok Areerat; Young, Glenn M.; Pornthap Thanonkeo (2014)

    Microorganisms play a significant role in bioethanol production from lignocellulosic material. A challenging problem in bioconversion of rice bran is the presence of toxic inhibitors in lignocellulosic acid hydrolysate. Various strains of Zymomonas mobilis (ZM4, TISTR 405, 548, 550 and 551) grown under biofilm or planktonic modes were used in this study to examine their potential for bioconversion of rice bran hydrolysate and ethanol production efficiencies. Z. mobilis readily formed bacterial attachment on plastic surfaces, but not on glass ...
  • Thumbnail

    Production, purification and characterization of an ionic liquid tolerant cellulase from Bacillus sp. isolated from rice paddy field soil 

    Patchanee Yasurin (2015)

    Background: Lignocellulosic biomass is a renewable, abundant, and inexpensive resource for biorefining process to produce biofuel and valuable chemicals. To make the process become feasible, it requires the use of both efficient pretreatment and hydrolysis enzymes to generate fermentable sugars. Ionic liquid (IL) pretreatment has been demonstrated to be a promising method to enhance the saccharification of biomass by cellulase enzyme; however, the remaining IL in the hydrolysis buffer strongly inhibits the function of cellulase. This study aimed ...
  • Thumbnail

    Review: antimicrobial properties of common herbs and spices used in Thai cooking 

    Patchanee Yasurin (2015)

    The common Thai cooking herbs and spices antimicrobial activities; Chilli (Capsicum annuum), Lemongrass (Cympopogon citrates), Garlic (Allium sativum), Shallot (Allium ascalonicum), Galangal (Alpinia galangal), and Kaffir Lime (Citrus hystrix), have been reported numerously. Not only their antimicrobial activities but the antimicrobial active compounds and composition have been continuous reported under difference extraction methods and analysis methods. To understand antimicrobial mechanism of these herbs and spices will benefit ...