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RISS 인기검색어
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- 저자 : Prayad Thirawong (검색결과 5 건)
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설국환,송지혜,Thirawong Prayad,김현욱,장애라,함준상,오미화,김동훈,이무하 한국축산식품학회 2011 한국축산식품학회지 Vol.31 No.5
This study was performed to measure the angiotensin I-converting enzyme (ACE) inhibitory activity of peptide extracts derived from the enzymatic proteolysis of Hanwoo Musculus longissimus (M. longissimus) during cold storage. Thermolysin (80 ppm, w/w) and protease type XIII (100 ppm, w/w) were injected separately or in combination for the enzymatic proteolysis of sarcoplasmic and myofibrillar proteins prior to storage at 5oC (T1) or at -1oC (T2) in a chilling room for 9days. Beef injected with thermolysin (E2) and thermolysin+protease type XIII (E3) showed a significantly higher degree of hydrolysis at both storage temperatures (p<0.05). During the storage period, T1E2 at day 6 and T1E3 at day 9 showed the strongest ACE inhibitory activity with sarcoplasmic and myofibrillar protein proteolysates. Macromolecules greater than 10,000 Da were removed by ultra filtration, and the filtrates were separated into fractions using gel filtration. Five and three major fractions were collected from S-T1E2-6 and M-T1E3-9 extracts, respectively, and the 4th fraction of the S-T1E2-6extracts showed the highest ACE inhibitory rate of 61.96±7.41%.
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The Effect of the Water Extracts of Digestive Medicinal Plants on the Shelf-life of Pork Patties
설국환,설현철,Thirawong Prayad,김현욱,장애라,함준상,오미화,김동훈,이무하 한국축산식품학회 2011 한국축산식품학회지 Vol.31 No.1
The Effect of the Water Extracts of Digestive Medicinal Plants on the Shelf-life of Pork PattiesThis study was performed to examine the possibility of water extracts of several digestive medicinal plants (DMPEs),such as Amomum tasoko, Alpinia oxyphylla, Citrus unshiu, and Myristica fragrans, as a natural antioxidant. Total phenol contents of each extract were expressed as gallic acid equibalents (GAE) and those were significantly different among A. tasoko (39.87±5.77 mg GAE/g), A. oxyphylla (30.28±3.36 mg GAE/g), C. unshiu (28.13±5.01 mg GAE/g) and M. fragrans (6.36±0.30 mg GAE/g) (p<0.05), and extract of A. tasoko showed significantly higher antioxidative effect than butylated hydroxyanisole (BHA) on linoleic acid peroxidation at 72 h after incubation (p<0.05). Addition of extracts in pork patties did not affect the pH value and total microbes during cold storage. However, thiobarbituric acid reative substances (TBARS)of treated patties were lower in dose dependant manner than that of control as storage period increased (except patties treated with C. unshiu extract), and patties treated with 0.5% A. tasoko extract showed no significant difference with patties treated with 0.5% BHA at day 7.
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The Effect of the Water Extracts of Digestive Medicinal Plants on the Shelf-life of Pork Patties
Seol, Kuk-Hwan,Seol, Hyun-Chul,Prayad, Thirawong,Kim, Hyoun-Wook,Jang, Ae-Ra,Ham, Jun-Sang,Oh, Mi-Hwa,Kim, Dong-Hun,Lee, Moo-Ha Korean Society for Food Science of Animal Resource 2011 한국축산식품학회지 Vol.31 No.1
This study was performed to examine the possibility of water extracts of several digestive medicinal plants (DMPEs), such as Amomum tasoko, Alpinia oxyphylla, Citrus unshiu, and Myristica fragrans, as a natural antioxidant. Total phenol contents of each extract were expressed as gallic acid equibalents (GAE) and those were significantly different among A. tasoko ($39.87{\pm}5.77$ mg GAE/g), A. oxyphylla ($30.28{\pm}3.36$ mg GAE/g), C. unshiu ($28.13{\pm}5.01$ mg GAE/g) and M. fragrans ($6.36{\pm}0.30$ mg GAE/g) (p<0.05), and extract of A. tasoko showed significantly higher antioxidative effect than butylated hydroxyanisole (BHA) on linoleic acid peroxidation at 72 h after incubation (p<0.05). Addition of extracts in pork patties did not affect the pH value and total microbes during cold storage. However, thiobarbituric acid reative substances (TBARS) of treated patties were lower in dose dependant manner than that of control as storage period increased (except patties treated with C. unshiu extract), and patties treated with 0.5% A. tasoko extract showed no significant difference with patties treated with 0.5% BHA at day 7.
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Seol, Kuk-Hwan,Song, Ji-Hye,Prayad, Thirawong,Kim, Hyoun-Wook,Jang, Ae-Ra,Ham, Jun-Sang,Oh, Mi-Hwa,Kim, Dong-Hun,Lee, Moo-Ha Korean Society for Food Science of Animal Resource 2011 한국축산식품학회지 Vol.31 No.5
This study was performed to measure the angiotensin I-converting enzyme (ACE) inhibitory activity of peptide extracts derived from the enzymatic proteolysis of Hanwoo Musculus longissimus (M. longissimus) during cold storage. Thermolysin (80 ppm, w/w) and protease type XIII (100 ppm, w/w) were injected separately or in combination for the enzymatic proteolysis of sarcoplasmic and myofibrillar proteins prior to storage at $5^{\circ}C$ (T1) or at $-1^{\circ}C$ (T2) in a chilling room for 9 days. Beef injected with thermolysin (E2) and thermolysin+protease type XIII (E3) showed a significantly higher degree of hydrolysis at both storage temperatures (p<0.05). During the storage period, T1E2 at day 6 and T1E3 at day 9 showed the strongest ACE inhibitory activity with sarcoplasmic and myofibrillar protein proteolysates. Macromolecules greater than 10,000 Da were removed by ultra filtration, and the filtrates were separated into fractions using gel filtration. Five and three major fractions were collected from S-T1E2-6 and M-T1E3-9 extracts, respectively, and the $4^{th}$ fraction of the S-T1E2-6 extracts showed the highest ACE inhibitory rate of $61.96{\pm}7.41%$.
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Keiji Matsuba,Apirada Padlom,Anchalee Khongpradit,Phoompong Boonsaen,Prayad Thirawong,Suriya Sawanon,Yutaka Suzuki,Satoshi Koike,Yasuo Kobayashi 아세아·태평양축산학회 2019 Animal Bioscience Vol.32 No.10
Objective: The present study was conducted to select a plant oil without inhibitory effects on rumen fermentation and microbes, and to determine the optimal supplementation level of the selected oil in a series of in vitro studies for dietary application. Then, the selected oil was evaluated in a feeding study using Thai crossbred beef cattle by monitoring growth, carcass, blood and rumen characteristics. Methods: Rumen fluid was incubated with substrates containing one of three different types of plant oil (coconut oil, palm oil, and soybean oil) widely available in Thailand. The effects of each oil on rumen fermentation and microbes were monitored and the oil without a negative influence on rumen parameters was selected. Then, the dose-response of rumen parameters to various levels of the selected palm oil was monitored to determine a suitable supplementation level. Finally, an 8-month feeding experiment with the diet supplemented with palm oil was carried out using 12 Thai crossbred beef cattle to monitor growth, carcass, rumen and blood profiles. Results: Batch culture studies revealed that coconut and soybean oils inhibited the most potent rumen cellulolytic bacterium Fibrobacter succinogenes, while palm oil had no such negative effect on this and on rumen fermentation products at 5% or higher supplementation level. Cattle fed the diet supplemented with 2.5% palm oil showed improved feed conversion ratio (FCR) without any adverse effects on rumen fermentation. Palm oil-supplemented diet increased blood cholesterol levels, suggesting a higher energy status of the experimental cattle. Conclusion: Palm oil had no negative effects on rumen fermentation and microbes when supplemented at levels up to 5% in vitro. Thai crossbred cattle fed the palm oil-supplemented diet showed improved FCR without apparent changes of rumen and carcass characteristics, but with elevated blood cholesterol levels. Therefore, palm oil can be used as a beneficial energy source.
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