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초고압처리 및 결착제 첨가가 재구성 돈육의 품질특성에 미치는 효과
최예철,정경훈,천지연,최미정,홍근표,Choi, Ye-Chul,Jung, Kyung-Hun,Chun, Ji-Yeon,Choi, Mi-Jung,Hong, Geun-Pyo 한국축산식품학회 2013 한국축산식품학회지 Vol.33 No.5
본 연구에서는 식육의 재구성에 첨가되는 식염의 함량을 줄인 저염 재구성육 제품을 제조하기 위하여 다양한 결착제의 활용, GdL 첨가 및 초고압처리 수준에 따른 재구성돈육의 품질 특성을 조사하였다. 본 연구에서 첨가된 0.5% GdL 수준은 제품의 pH를 유의적으로 감소시키며, GdL 자체 혹은 초고압처리에 의한 식육단백질의 젤 형성에 기인하여 효과적으로 pH 저하에 따른 보수력 감소를 억제할 수 있었다. 또한 첨가된 결착제에 의한 부가적인 보수력 및 조직감 향상을 얻을 수 있었다. 따라서 본 연구결과 초고압 처리 및 GdL을 조합 사용함으로써 식육 재구성에 요구되는 식염의 함량을 0.5%까지 저감시킬 수 있었으며, 다양한 식물성 단백질을 활용한 식육 재구성이 가능할 것으로 기대되었다. The objective of this study was to investigate the effect of high pressure treatment and type of binding agents on the quality characteristics of restructured pork. For binding agents, 2% (w/w) isolated soy protein (SP), 0.5% (w/w) wheat flour (WF) and 0.5% (w/w) ${\kappa}$-carrageenan (KC) were incorporated into meat batter with or without 0.5% (w/w) glucono-${\delta}$-lactone (GdL). The restructured pork was pressurized at varying pressure levels (0.1-450 MPa) for 3 min under ambient temperature and thermal treated at $75^{\circ}C$ for 30 min. As quality parameters of restructured pork, pH, water binding properties, instrumental color and texture profile analysis were determined and compared with control (C, no binder). For type of binders, SP exhibited the best water binding properties, however, the impact on textural properties were lesser than KC and WF. The addition of GdL decreased the pH of restructured pork down to 0.4 unit, while high pressure processing prevented the moisture loss caused from pH decrease by GdL. In particular, meat restructuring efficiency of SP as a binder improved under the presence of GdL. Therefore, the present study demonstrated the potential advantages of low amount of GdL (0.5%, w/w) combined with protein based binder (SP) and high pressure processing in restructuring meat particles.
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이미연,최예철,천지연,민상기,홍근표 한국축산식품학회 2013 한국축산식품학회지 Vol.33 No.4
This study was performed to investigate the effects of high pressure/high temperature (HPHT) treatment on the recovery efficiency and characteristics of porcine placenta hydrolysates. The placenta hydrolysates were characterized by solubility,free amino acid contents, gel electrophoresis, gel permeation chromatography (GPC) and amino acid composition. Placenta was treated at 37.5 MPa of pressure combined with various temperatures (150, 170, and 200o C) or various holding times (0,30, and 60 min at 170o C). Insoluble raw placenta collagen was partially solubilized (> 60% solubility) by the HPHT treat-ment. Free amino group content of placenta collagen was increased from 0.1 mM/g collagen to > 0.3 mM/g collagen after HPHT treatment, reflecting partial hydrolysis of collagen. The molecular weight (Mw) distribution showed evidence of col-lagen hydrolysis by shifting of Mw peaks toward low molecular weight when treated temperature or holding time was increased. Alanine (Ala), glycine (Gly), hydroxyproline (Hyp), and proline (Pro) contents increased after the HPHT treat-ments compared to a decrease in the others. In particular, the increase in Gly was obvious, followed by Hyp and Pro, reflect-ing that placenta hydrolysates were mainly composed of these amino acids. However, increasing temperature or holding time hardly affected the amino acid compositions. These results indicate that the HPHT treatment is advantageous to hydro-lyze collagen derived from animal by-products.
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골반골절에 동반된 후부요도파열에 대한 내시겨하 일차요도정렬술
박용주,이종복,최예철,임한기 대한외상학회 1999 大韓外傷學會誌 Vol.12 No.1
Background: We evaluate the safety and effectiveness of immediate realignment under guid- ance of endoscopy in patients with traumatic posterior urethral rupture associated pelvic frac- ture. Methods: From April 1991 to October 1997, primary realignment under formal cystostomy and under guidance of endoscopy was performed in 6 patients with posterior urethral rupture that was in impossible lithotomy position due to pelvic fracture. Urethral catheter was placed for 6 to 10 weeks, and patients performed temporary self-dilatation to prevent stricture. All patients were evaluated postoperatively for stricture, incontinence and impotence. Results: The mean followup was 30 months(range up to 4.3 years). Of the patients, 3(50%) were treated successfully without voiding and sexual dysfunction. Stricture that needed internal urethrotomy or repeated soundation was present in 3, but no one needed urethroplasty. Sexual dysfunction and urinary incontinence developed in 2 patients and 1 patient respectively. Conclusions: Endoscopy guided primary realignment in patients with posterior urethral rup- ture associated pelvic fracture seems to be a safe, effective and minimally invasive technique. To confirm this early result, studies with more patients and longer follow up are needed.
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방광외상 : 복막내 및 복막외 파열의 임상적 의의는 같은가 ?
이종복,문재천,조승필,최예철 대한외상학회 1997 大韓外傷學會誌 Vol.10 No.2
Purpose : To investigate whether the difference of the clinical significance is present or not between the traumatized patient with intraperitoneal and extraperitoneal bladder rupture. Materials and Methods : We reviewed 49 cases of traumatic intraperitoneal(IP) and extraperitoneal(EP) bladder rupture admitted to our hospital from Jan. 1992 to July 1997, and compared the clinical parameters such as cause of injury, clinical manifestations, injury severity score(ISS), major injured organ, admission rate to non-urologic department and morality rate. Results : Between the patients with intraperitoneal and extraperitoneal rupture, no significant difference were present in the cause of injury, clinical manifestations and mortality rate, but the rate of associated injury including pelvic bone fracture was occurred higher in the extraperitoneal rupture. When determined the main injured organ in the patients with bladder rupture, the rate of bladder was higher in the intraperitoneal rupture , the rate of bladder rupture taking in the injury severity score(ISS) per each traumatized patient was also larger in the intraperitoneal ruphre(p<0.05). Conclusions : Our results suggest that the clinical significance is different between the patients with intraperitoneal and extraperitoneal bladder rupture. The extraperitoneal rupture is considered as minor associated injury of other organ injury in many cases and relative clinical importance is smaller than that of intraperitoneal rupture.
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