Browsing by Subject "Natural antibacterial"
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    Natural antibacterial activity of Thai curry paste in Thai red curry (Kang-Kati) model against Listeria monocytogenes 10403S
    (Rajamangala University of Technology Phra Nakhon, 2013) Patchanee Yasurin ; Thidarat Udchachonand
    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), Cymbopogon citratus (Lemongrass), and Alpinia galangal (Galangal). All of the mentioned herbs have been investigated for their antibiotics activity. This project aimed to investigate the antibacterial activity of red curry paste in fresh-coconut-milk-based Thai red curry (Kang-Kati) model on L. monocytogenes 10403S. Thai curry paste in-vitro antibacterial activity was evaluated by standard plate count method on BHI media every hour for 6 hours at room temperature. Thai red curry was prepared by Thai homemade authentic cooking method as served in Thai cuisine. Results showed that the L. monocytogenes 10403S log CFU/ml level in Thai red curry (Kang-Kati) was significantly lower than in nutrient broth, as positive control, (P < 0.05) since 2nd - 6th hour; 2ndhr; 6.28±0.01 and 6.38±0.02, 3rdhr; 6.39±0.04 and 6.91±0.14, 4th; 6.96±0.05 and 7.24±0.10, 5th hr; 7.02±0.05 and 7.38±0.10 and 6th hr; 7.04±0.04 and 7.43±0.03 log CFU/ml, respectively. The t-test has been done by using SAS on log CFU/ml with P < 0.05. The Thai red curry paste in Kang-Kati model showed promising antibacterial activity against food-borne pathogenic bacteria, L. monocytogenes 10403S.
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    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)
    ( 2013) Patchanee Yasurin
    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), Allium ascalonicum L (Shallot), Allium sativum (Garlic), Citrus hystrix (kaffir lime), Cuminum cyminum (Cumin). This study aimed to investigate the potential of Thai curry paste in Thai red curry-water base (Kang-Pa) model as natural antibacterial agent against S. enterica 4, 5, 12: i - (human) US clone and S. enteric Enteritidis (Human). Thai curry paste in-vitro antibacterial activity was evaluated by standard plate count method on SS media every hour for 6 hrs at room temperature. Thai red curry was prepared according to Thai homemade authentic cooking method as it has been served in Thai cuisine. The result showed that the log CFU/ml of S. enterica 4, 5, 12: i - (human) US clone in Kang-Pa was significantly lower than in nutrient broth, as positive control, (P < 0.05) since 2nd - 6th hour: 2nd hr; 5.14±0.06 and 5.44±0.17, 3rdhr; 5.86±0.19 and 6.76±0.28, 4th; 5.85±0.16 and 6.97±0.6, 5th hr; 5.92±0.22 and 6.26±0.27 and 6th hr; 6.88±0.04 and 7.51±0.20 log CFU/ml, respectively. While the log CFU/ ml of S. enteric Enteritidis in Kang-Pa was significant lower than those of positive control (NB) (P<0.05) only at 2nd and 3rd hour: 2nd hr: 5.705±0.199 and 6.370±0.085 log CFU/ml, at 3rd hr: 5.872±0.255 and 6.878±0.177 log CFU/ml, respectively. The t-test has been done by using SAS on log CFU/ml with P < 0.05. Thai curry paste in Kang-Pa model showed promising antibacterial activity against food-borne pathogenic bacteria, S. enterica 4, 5, 12: i - (human) and S. enteric Enteritidis (human).
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    Natural antibacterial activity of Thai red curry paste in Thai red curry (Kang-Kati and Kang-Panaeng) model against Salmonelle enterica 4,5,12:i:-(HUMAN) US CLONE AND Listeria monocytogenes
    (Faculty of Graudate Studies Mahidol University, 2014-02) Patchanee Yasurin
    Foods with natural antibiotic properties become one of consumer concern Salmonella sp. and Listeria monocytogenes are important cause of human illness and have been reported about the outbreak in many years and many countries. Kang Panaeng is the traditional Thai food and popular dish. Kang Panaeng main ingredients compose of many types of including Capsicum annuum (Chili), Cymbopogoncitratus (Lemongrass), Allium ascalonicum (Shallots), Allium sativum (Garlic), Arachishypogaea (Peanuts) shrimp paste, sugar and salt. The objective of this research is to investigate the antibacterial activity of Kang Panaeng curry paste model against S. enterica 4,5,12:i:- (human) US clone and L. monocytogenes 10403S. The Kang Panaeng curry paste in-vitro antibacterial activity was evaluated by standard plate count method on SS agar and BHI media every hour for 6 hours at room temperature. Kang Panaeng was prepared by Thai homemade authentic cooking method. The t-test was done by using SAS on log CFU/ml (P < 0.05). The results showed that the log CFU/ml of S. enterica 4,5,12:i:-(human)US clone in Kang Panaeng was significant lower than in positive control (NB) (P<0.05) since 1st-6th hour: 1sthr; 6.32±0.10and 5.94±0.07, 2ndhr; 7.26±0.07 and 6.17±0.04, 3rdhr; 7.30±0.07 and 6.32±0.01, 4thhr; 7.93±0.50 and 6.37±0.01 , 5thhr; 8.01±0.48 and 6.40±0.02, and 6thhr; 8.34±0.03 and 6.45±0.01 log CFU/ml, respectively. For L. monocytogenes 10403S, the log CFU/ml in Kang-Panaeng was significant lower than in positive control (BHI), since 2nd-6th hour; 2ndhr; 7.23±0.01and 6.39±0.06, 3rdhr; 7.30±0.02 and 6.44±0.02, 4thhr; 7.39±0.01 and 6.46±0.01, 5thhr; 7.44±0.01 and 7.39±0.01, and 6thhr; 7.46±0.01 and 7.42±0.01 log CFU/ml, respectively. The Kang-Panaeng curry paste in Kang Panaeng model showed promising antibacterial activity against food-borne pathogenic bacteria, S. enterica 4,5,12:i:-(human) US clone and L. monocytogenes.
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    ผลการเปรียบเทียบฤทธิ์ในการต้านแบคทีเรียของส่วนประกอบในพริกแกงแดงในสูตรจําลองแกง ป่าและแกงกะทิต่อเชื้อ Salmonella Enterica 4,5,12:i:- (human) US clone
    (คณะอุตสาหกรรมเกษตร สถาบันเทคโนโลยีพระจอมเกล้าเจ้าคุณทหารลาดกระบัง, 2012-09) พัชนีย์ ยะสุรินทร์
    จากการศึกษาฤทธิ์ต้านเชื้อแบคทีเรียของส่วนประกอบหลักของพริกแกงซึ่งประกอบด้วยสมุนไพรเจ็ดชนิด คือ พริก (Capsicum annuum), มะกรูด (Citrus hystrix), ยี่หร่า (Cuminum cyminum L.), หอมแดง (Allium ascalonicum L.), กระเทียม (Allium sativum), ตะไคร้ (Cymbopogon citrates), และ ข่า (Alpinia galangal) ในสูตรจําลองแกงป่า และ แกงกะทิกับเชื้อ Salmonella Enterica 4,5,12:i:- (human) US clone โดยใช้วิธี agar diffusion method ลงบนอาหาร เลี้ยงเชื้อ Sallmonella Shigella ภายใต้การสกัด 3 สภาวะ โดยใช้การปรุงแบบอาหารในครัวเรือน คือ แกงป่าใช้น้ําในการ สกัด แกงกะทิใช้กะทิยูเอชที และ กะทิสดในการสกัด ผลจากสารสกัดทั้งสามชนิด แสดงให้เห็นว่าแกงกะทิที่ใช้กะทิสดใน การสกัดมีศักยภาพสูงสุดในการยับยั้งเชื้อ S. Enterica 4,5,12:i:- (human) US clone โดยในกระเทียม และ เม็ดยี่หร่าพบ ฤทธิ์ต้านแบคทีเรีย 0.90 ± 0.14cm ในแกงกะทิที่ใช้กะทิยูเอชที พริกแห้งให้ฤทธิ์ต้านแบคทีเรียที่สูงที่สุดคือ 0.93±0.12cm และในแกงป่าในพริกแห้ง และ หอมแดงให้ฤทธิ์ต้านแบคทีเรียคือ 0.80 ± 0.00cm ในการหาค่าความเข้มข้นต่ําสุดที่ สามารถยับยั้งเชื้อ (MICs) โดยใช้วิธี broth dilution method, กระเทียมและผงยี่หร่าพบ160 µl/mlใน แกงกะทิโดยใช้กะทิ สด พริกแห้งในแกงกะทิโดยใช้กะทิยูเอชทีพบ80µl/ml ส่วนในแกงป่าพริกแห้งพบ80 µl/mlและหอมแดงพบ 160µl/ml ส่วนประกอบพริกแกงแสดงให้เห็นฤทธิ์ต้านแบคทีเรียที่มีแนวโน้มอย่างมีนัยสําคัญต่อ S. Enterica 4,5,12:i:- (human) US clone ชี้ให้เห็นว่าพริกแกงเป็นอาหารที่มีสารออกฤทธิ์ในการป้องกัน