• Title/Summary/Keyword: Hwang Jin I

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Application for Identification of Food Raw Materials by PCR using Universal Primer (일반 프라이머를 이용한 PCR의 식품원료 진위 판별에 적용)

  • Park, Yong-Chjun;Jin, Sang-Ook;Lim, Ji-Young;Kim, Kyu-Heon;Lee, Jae-Hwang;Cho, Tae-Yong;Lee, Hwa-Jung;Han, Sang-Bae;Lee, Sang-Jae;Lee, Kwang-Ho;Yoon, Hae-Seong
    • Journal of Food Hygiene and Safety
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    • v.27 no.3
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    • pp.317-324
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    • 2012
  • In order to determine an authenticity of food ingredient, we used DNA barcode method by universal primers. For identification of animal food ingredients, LCO1490/HCO2198 and VF2/FISH R2 designed for amplifying cytochrome c oxidase subunit1 (CO1) region and L14724/H15915 for cytochrome b (cyt b) region on mitochondrial DNA were used. Livestock (cow, pig, goat, sheep, a horse and deer) was amplified by LCO1490/HCO 2198, VF2/FISH R2 and L14724/H15915 primers. Poultry (chicken, duck, turkey and ostrich) was amplified by LCO1490/HCO 2198 and VF2/FISH R2 primers. But, Fishes (walleye pollack, herring, codfish, blue codfish, trout, tuna and rockfish) were only amplified by VF2/FISH R2 primers. For plant food ingredients, 3 types of primers (trnH/psbA, rpoB 1F/4R and rbcL 1F/724R) have been used an intergenic spacer, a RNA polymerase beta subunit and a ribulose bisphosphate carboxylase region on plastid, respectively. Garlic, onion, radish, green tea and spinach were amplified by trnH/psbA, rpoB 1F/4R and rbcL 1F/724R. The PCR product sizes were same by rpoB 1F/4R and rbcL 1F/724R but, the PCR product size using trnH/psbA primer was different with others for plants each. We established PCR condition and universal primer selection for 17 item's raw materials for foods and determine base sequences aim to PCR products in this study. This study can apply to determine an authenticity of foods through making an comparison between databases and base sequences in gene bank. Therefore, DNA barcode method using universal primers can be a useful for species identification techniques not only raw materials but also processed foods that are difficult to analyze by chemical analysis.

Immunomodulatory Activity of Water Extract of Ulmus macrocarpa in Macrophages (유근피 추출물이 대식세포 면역조절에 미치는 영향)

  • Kwon, Da Hye;Kang, Hye-Joo;Choi, Yung Hyun;Chung, Kyung Tae;Lee, Jong Hwan;Kang, Kyung Hwa;Hyun, Sook Kyung;Kim, Byung Woo;Hwang, Hye Jin
    • Journal of Life Science
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    • v.26 no.1
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    • pp.50-58
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    • 2016
  • The root bark of Ulmus macrocarpa has been used in traditional medicine for the treatment of various diseases such as edema, infection and inflammation. Nevertheless, the biological activities and underlying mechanisms of the immunomodulatory effects remain unclear. In this study, as part of our ongoing screening program to evaluate the immunomodulatory potential of new compounds from traditional medicinal resources, we investigated the effects of U. macrocarpa water extract (UME) on immune modulation in a murine RAW 264.7 macrophage model. As immune response parameters, the productions of as nitric oxide (NO) and cytokines such tumor necrotic factor (TNF)-α, interleukin (IL)-1β and IL-10 were evaluated. Although the release of IL-1β remained unchanged in UME-treated RAW 264.7 macrophages, the productions of NO, TNF-α and IL-10 were significantly increased, along with the increased expression of inducible NO synthase, TNF-α and IL-10 expression at concentrations with no cytotoxicity. UME treatment also induced the nuclear translocation of nuclear factor κB (NF-κB), and phosphorylation of Akt and mitogen-activated protein kinases (MAPKs) indicating that UME activated macrophages through the activation of NF-κB, phosphoinositide-3-kinase (PI3K)/Akt and MAPKs signaling pathways in RAW 264.7 macrophages. Furthermore, pre-treatment with UME significantly attenuated the production of NO, but not TNF-α, IL-1β and IL-10, in lipopolysaccharide-stimulated RAW 264.7 cells suggesting that UME may be useful in preventing inflammatory diseases mediated by excessive production of NO. These findings suggest that the beneficial therapeutic effects of UME may be attributed partly to its ability to modulate immune functions in macrophages.

Clinical Observation on The Left and Right Facial Palsy (${\cdot}$右側 口眼와斜 患者에 對한 臨床的 考察)

  • Lim, Jin-Ki;Lim, Gyu-Sang;Hwang, Choong-Yeon
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.10 no.1
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    • pp.383-402
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    • 1997
  • The author analyzed 155 cases of Facial Palsy, excluding lesions caused by cerebrovascular attacks, who were treated in the Kwang-ju Oriental Medical Hospital of Wonkwang University from March 1996 to September 1996. I've examined the 155 cases in the view of the etiologic distributions, the age, the relationship of the sex and paralytic side, attended symptoms and analyzed 95 cases who were treated over ten times in the view of the ratio of recovery according to the age, anatomic focus, the relations of sex and paralytic side. The following results are obtained. 1. The ratio of punghan(風寒) was $20.64\%$(32 cases), overwork was $18.70\%$(29 cases), stress was $6.44\%$(10 cases), excessive drinking was $3.23\%$(5 cases), teeth pain was $1.93\%$(3 cases), and idiopathy was $38.05\%$(59) and etc. 2. The ratio of stylomastoid pain was $15.48\%$(24 cases), auricular pain was $10.32\%$(16 cases), headache was $4.51\%$(7 cases), eyedried was $4.51\%$(7 cases), taste paralysis was $2.57\%$(4 cases), tinnitus was $2.57\%$(4 cases) and non-significant symptoms was $50.97\%$(79) and etc. 3. The ratio of 2th and 5th decade were $20.00\%$(31 cases), 4th decade was $18.71\%$(29 cases), 3th decade was $16.71\%$(26 cases), 6th decade was $11.61\%$(18 cases), teenagers in $5.81\%$(9 cases), over seventy and under teenagers were $3.23\%$(5 cases), and infant was $0.65\%$(1 case). 4. The ratio of the male-right was $28.39\%$(44 cases), female-right was $25.82\%$(40 cases), male-left was $23.23\%$(36 cases), female-left was $20.65\%$(32 cases) and male-both side was $1.94\%$(3 cases) in order. 5. Topographically, The ratio of the infrachordal lesion was $72.90\%$(113 cases), transgeniculate lesion was $16.13\%$(25 cases), suprageniculate lesion was $5.81\%$(9 cases), infrastapedial lesion was $3.87\%$(6 cases) and suprastapedial lesion was $1.29\%$(2 cases) in order. 6. When we examined the degree of recovery about the 95 patients who were treated over ten times after on attack, normal improvement was seen in $46.32\%$(44 cases), excellent in $7.37\%$(7 cases), good in $12.63\%$(12 cases), fair in $13.68\%$(13 cases), poor in $20.00\%$(19 cases). The total remedial value of the 95 patients who were treated over ten times was revealed $61.58\%$. 7. When we examined the 95 patients who were treated over ten times, the remedial value of the infant was $50.00\%$, under teenagers $43.75\%$, teenagers $37.50\%$, 2th decade $56.82\%$, 3th decade $64.06\%$, 4th decade $55.00\%$, 5th decade $73.53\%$, 6th decade $77.50\%$, over seventieth $68.75\%$. The remedial value of 3th decade, 5th decade, 6th decade, 7th decade and over seventieth were higher than the total remedial value($61.58\%$) 8. In the point of topographical lesion, when we examined the 95 patients who were treated over ten times, the remedial value of infrachordal lesion was $66.78\%$, infrastapedial lesion $58.33\%$, suprastapedial lesion $50.00\%$, transgeniculate lesion $48.44\%$, suprageniculate lesion $31.25\%$, in order. Only the remedial value of Infrachordal($66.78\%$) was higher than the total remedial value($61.58\%$). 9. In the point of the relationship of the sex and the paralytic side, when we examined the 95 patients who were treated over ten times, the remedial value of male-left was $57.29\%$, male-right $61.54\%$, male-both side $58.33\$%, female-left $57.81\%$ and female-right $68.27\%$. Only the remedial value of female-right($68.27\%$) was higher than the total remedial value($61.58\%$). These results demonstrated that in the point of prognostic view there was more concerned with the topographical lesion, body condition than the traditional rule of sex-paralytic relationship that man is awed left paralysis and woman right paralysis.

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Effect of Topical Application of Intercellular Lipids on Sodium Lauryl Sulphate-Damaged Skin Barrier Function in Dogs (개에서 sodium lauryl sulphate에 의한 손상 피부에 대한 각질세포간 지질의 국소적용 효과)

  • Hwang, Sun-Jin;Oh, Won-Seok;Ku, Sae-Kwang;Lee, Keun-Woo;Oh, Tae-Ho
    • Journal of Veterinary Clinics
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    • v.25 no.5
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    • pp.330-339
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    • 2008
  • Ceramide, cholesterol and free fatty acids are the major intercellular lipids, maintaining the integrity of the skin barrier. However, the roles of these lipids in canine skin barrier function are little known. The aim of this study was to evaluate the repairing effects of 2% ceramide (CER), 2% cholesterol (CHO), 2% linoleic acid (LIN) and 2% intercellular lipid mixture (ILM) on damaged canine skin barrier by 1.25% sodium lauryl sulphate (SLS). Transepidermal water loss (TEWL), skin hydration, skin pH and skin thickness were assessed. Histological profiles and transmission electron microscopic (TEM) profiles were assessed on day 12. SLS effectively induced the canine skin barrier damage. TEWL was significantly decreased by topical application of CER and ILM in SLS and vehicle-treated skin on day 8 and 12, respectively (p < 0.05, p < 0.0 I). By end of the experiment all lipids significantly decreased the TEWL as compared with SLS and vehicle control, but CER and ILM more significantly decreased the TEWL than UN and CHO, respectively (p < 0.01). Skin hydration was significantly increased by CER and ILM during experimental periods (p < 0.01). Skin pH was significantly decreased by CER, LIN and ILM. In histological profiles, the thickness of the stratum corneum (SC) was significantly increased by the SC lipids as compared with vehicle and SLS (p < 0.01). Especially, CER and ILM showed more prominent improvement of barrier recovery. In TEM of the SC, SLS induced exfoliations of corneodesmosomes in the SC, and CER and ILM effectively protected exfoliations of corneodesmosomes on SLS-damaged canine skin. These results indicated that topical application of CER and ILM dramatically improved damaged-skin barrier function by SLS. Also, it was considered that the use of CER or ILM was recommended for the management of skin barrier dysfunction by irritant and inflammatory skin disorders such as atopic dermatitis.

Effect of Aqueous Phase Composition on the Stability of a Silica-stabilized Water-in-oil Emulsion (유화제로서 실리카를 이용한 유중수형 에멀젼의 안정성에 미치는 수상부 조성의 영향)

  • Kim Jin-Hwang;Kim Song-I;Kyong Kee-Yeol;Lee Eun-Joo;Yoon Moung-Seok
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.30 no.3 s.47
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    • pp.353-359
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    • 2004
  • The extent of silica flocculation can be modified by varying the silica concentration, aqueous phase pH, salt and polvmer concentration. High volume fraction W/O emulsion stabilized by hydrophobic silica was established with various aqueous phase conditions for cosmetic application. By increasing the silica concentration up to $1.0\;wt\%,$ the size of droplet decreased. A high silica concentration increased the viscosity of continuous oil phase by network formation, which resulted in target size of droplet. The stability of W/O emulsion is improved as increasing the aqueous phase pH. At low and intermediate pH, the emulsions became more stable by adding salt $(0.083\;mol\;dm^{-3}\;MgSO_4).$ At high PH, the presence of salt caused significant destabilization. The gelation behavior of the emulsion indicates that the effect of salt on silica-stabilized emulsion is derived from an electrostatic attraction. The addition of xanthan gum in aqueous phase increased the mono-dispersity of the W/O emulsion by making water more hydrophobic and hindering the recombination of droplets. In conclusion, these results indicate that very stable emulsifier-free, finely dispersed W/O emulsion can be achieved for cosmetic application by changing the aqueous phase composition.

Clinical research of Aqua-acupuncture effects on Rheumatoid arthritis (약침을 이용한 류마토이드 관절염에 대한 임상적 연구)

  • Park, So-Young;Koh, Kang-Hoon;Yoon, Min-Young;Jin, Kyong-Sun;Chang, Byoung-Sun;Km, Il-Du;Cho, Nam-Geun;Lee, Byong-Chul;Lee, Sam-Ro;Moon, Hyung-Cheol;Hwang, Woo-Jun;Lee, Geon-Mok
    • Journal of Acupuncture Research
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    • v.19 no.1
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    • pp.135-146
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    • 2002
  • Background and Purpose : This study shows the clinical effects on treatment with Rheumatoid arthritis using Aqua-acupuncture such as Ursi Fel Bovis Calculus and Cathami Flos that are known for which have anti-inflammatory and analgesic effects. Objective and Methods : This study has been carried out Aqua-acupuncture treatment such as Cathami Flos and Ursi Fel Bovis Calculus twice or three times a week with patients diagnosed as rheumatoid arthritis on 7 criteria of US Rheumatism Academy. Results : 1. If you see the sexual distribution, it shows the rates of male and female 1: 1.83. Age distribution shows as age ascend it shows high. 2. If you see the duration distribution, it shows chronic tendency in order of more than 6 months(63.3%), 2 to 5 months, and I month. 3. If you see the invaded distribution, it shows chronic tendency in order of hand(37 cases), wrist joint(34 cases), knee joint(32 cases), ankle joint(21 cases), elbow joint(16 cases), shoulder joint(14 cases), feet(14 cases), hip joint(9 cases), low back(6 cases), neck(4 cases). 4. Seeing the mean post-therapeutic index among groups on RA factor level distinction, it shows that 0-18(normal range) scored 89.0, 19-50 scored 94.8, 51-80 scored 101.2, 81-100 scored 97.3, 101-140 scored 102.4, above 141 scored 97.5. 5. Seeing the mean post-therapeutic index among groups on CRP level distinction, it shows that 0-0.4(normal range) scored 100, 0.5-1.0 scored 48.6, 1.1-2.0 scored 34.9, 2.1-3.0 scored 35.7, 3.1-4.0 scored 37.1, 4.1-5.0 scored 53.8, above 5.0 scored 70.4. 6. Seeing the mean post-therapeutic index among groups on ESR level distinction, it shows that 0-20(normal range) scored 48.6, 21-40 scored 57.5, 41-60 scored 59.2, 61-80 scored 59.2, above 81 scored 66.0. 7. If you see the satisfactory assesment after Aqua-acupuncture treatment such as Cathami Flos and Ursi Fel Bovis Calculus, Excellent is 11 cases, Good is 14 cases, and Moderate 5 cases. Conclusion : It will be better effects, if herbal medicine, moxibustion, and acupuncture are used together with Cathami Flos and Ursi Fel Bovis Calculus on rheumatoid arthritis as chronic inflammatory disease.

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Expression of Growth Factors and Secretory Leukocyte Protease Inhibitor (SLPI) in RAW264.7 Cells after Lipopolysaccharide (LPS) Stimulation (대식세포주 (RAW264.7)에서 박테리아성 지질다당류 (LPS) 자극에 의한 분비백혈구단백분해효소억제제 (SLPI)와 성장인자들의 발현)

  • Son, Wook-Hee;Choi, Baik-Dong;Jeong, Soon-Jeong;Wang, Guan-Lin;Hwang, Ho-Keel;Jeong, Moon-Jin
    • Applied Microscopy
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    • v.37 no.2
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    • pp.93-102
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    • 2007
  • Secretory leukocyte protease inhibitor (SLPI) was known as one of bacterial lipopolysaccharide (LPS)-induced products of macrophage. Macrophages play an important role in the development of inflammatory responses by secreting an array of cytokines and chemokines in a tissue microenvironment. To identify the function and relationship between potent growth factors and SLPI after LPS stimulation, we conducted reverse transcriptase polymerase chain reaction (RT-PCR) and Western blots for the detection of mRNA and protein expression of SLPI and growth factors such as VEGF, PDGF, bFGF after 100 ng LPS stimulation on the RAW264.7 cells. The result of RT-PCR was showed SLPI mRNA expression was increased from 60 min to 48h in RAW 264.7 cells after incubation with LPS. VEGF and PDGF mRNA was expressed highly at initial stage by LPS stimulation. The mRNA of bFGF and type I collagen was very weakly expressed after LPS stimulation. SLPI protein level was increased likely the mRNA levels in RAW 267.7 cells. Additionally, phase contrast and scanning electron microscopic observation demonstrated that the LPS induce the change of morphology of the RAW264.7 cells. From these results, it suggest that expression of SLPI by LPS treatment may associate with VEGF and PDGF expression in RAW264.7 cells.

Synthesis and Evaluation of $2-[^{18}F]Fluoro-A85380$, a Radioligand for ${\alpha}_4{\beta}_2$ Nicotinic Acetylcholine Receptor Imaging (${\alpha}_4{\beta}_2$ 니코틴성 아세틸콜린 수용체 영상 방사성리간드 $2-[^{18}F]fluoro-A85380$의 합성 및 평가)

  • Ryu, Eun-Kyoung;Choe, Yearn-Seong;Kim, Sang-Eun;Hwang, Sae-Hwan;Paik, Jin-Young;Choi, Yong;Lee, Kyung-Han;Kim, Byung-Tae
    • The Korean Journal of Nuclear Medicine
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    • v.36 no.4
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    • pp.261-270
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    • 2002
  • Purpose: Nicotinic acetylcholine receptors (nAChRs), which mediate excitatory neurotransmission, are known to participate in various neurophysiological functions. Severe losses of nAChRs have been noted in Alzheimer's and Parkinson's diseases. Therefore, noninvasive and quantitative imaging of nAChRs would offer a better understanding on the function of these receptors. In this study, $2-[^{18}F]fluoro-A85380\;([^{18}F]1)$, an ${\alpha}_4{\beta}_2$ nAChRs radioligand, was prepared using one HPLC purification and evaluated in mouse brain, and the results were compared with those in the literature. Materials and Methods: $[^{18}F]1$ was prepared by $[^{18}F]$fluorination of the iodo precursor followed by acidic deprotection and then purified by HPLC. Tissue distribution studies were performed in mouse brain at the indicated time points and the result was expressed as %ID/g. Inhibition studies were also carried out with pretreatment of various ligands. Results: One HPLC purification method gave the desired product in 15-20% radiochemical yield and with high specific activity ($38-55GBq/{\mu}mol$). Tissue distribution studies showed that $[^{18}F]1$ specifically labeled nAChRs in mouse brain with a high thalamus to cerebellum uptake ratio (13.8 at 90 min). Inhibition studios demonstrated selective binding of $[^{18}F]1$ to nAChRs, blocking the uptake of the $[^{18}F]1$ in nAChR-rich legions by selective ligands such as cytisine and nicotine which are well-known nAChRs agonists. Conclusion: This study demonstrated that the $[^{18}F]1$ produced by the method using one HPLC purification gave the results similar to those reported in the literature. Therefore, this synthetic method can be readily applied to the routine preparation of $[^{18}F]1$, a PET radioligand for ${\alpha}_4{\beta}_2$ nAChRs imaging.

Concurrent Degenerative Cervical and Lumbar Spondylolisthesis (경추 및 요추 퇴행성 척추전위증의 병발성 유병률)

  • Park, Moon Soo;Hwang, Ji-Hyo;Kim, Tae-Hwan;Oh, Jae Keun;Chang, Ho Guen;Kim, Hyung Joon;Park, Kun-Tae;Lim, Jin Kyu;Riew, K. Daniel
    • Journal of Korean Society of Spine Surgery
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    • v.25 no.4
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    • pp.154-159
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    • 2018
  • Study Design: Retrospective radiographic study. Objective: To evaluate the characteristics of concurrent degenerative cervical and lumbar spondylolisthesis. Summary of Literature Review: Concurrent degenerative cervical and lumbar spondylotic diseases have been reported. Given that severe spondylosis can result in spondylolisthesis, one might expect that concurrent spondylolisthesis of the cervical and lumbar spines might also be prevalent. However, the incidence of spondylolistheses in the lumbar and cervical spines might differ due to anatomical differences between the 2 areas. Nonetheless, there is minimal information in the literature concerning the incidence of concurrent cervical and lumbar spondylolisthesis. Material and Methods: We evaluated standing cervical and lumbar lateral radiographs of 2510 patients with spondylosis. Concurrence, age group, gender, and direction of spondylolisthesis were evaluated. Lumbar spondylolisthesis was defined as at least Meyerding grade I and degenerative cervical spondylolisthesis was defined as over 2 mm of displacement on standing lateral radiographs. Results: Lumbar spondylolisthesis was found in 125 patients (5.0%) and cervical spondylolisthesis was found in 193 patients (7.7%). Seventeen patients had both degenerative cervical and lumbar spondylolistheses (0.7%). Lumbar spondylolisthesis is a risk factor for coexisting cervical spondylolisthesis. Lumbar spondylolisthesis was more common in females than males, independent of advancing age. In contrast, degenerative cervical spondylolisthesis was more common in older patients, independent of gender. Anterolisthesis was more common in the lumbar spine. Retrolisthesis was more common in the cervical spine. Conclusions: There was a higher prevalence of degenerative cervical spondylolisthesis in patients with degenerative lumbar spondylolisthesis.

Studies on the Applications of PSL, TL and ESR Methods for The Detection of Irradiated Foods not Allowed to be Irradiated in Korea (광자극발광법, 열발광법 및 전자스핀공명법을 이용한 국내 방사선 조사 허용 외 식품에 대한 검지법 적용 연구)

  • Kim, Kyu-Heon;Choi, Eun-Jin;Chang, Ho-Won;Shin, Choon-Shik;Kim, Moon-Young;Hwang, Cho-Rong;Kim, Eun-Jeong;Jo, Tae-Yong;Park, Geon-Sang;Kang, Myung-Hee;Kim, Jae-I;Kim, Jin-Sook;Park, Sue-Nie;Seong, Rack-Seon;Jang, Young-Mi;Yoon, Hae-Sung;Han, Sang-Bae
    • Journal of Food Hygiene and Safety
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    • v.27 no.3
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    • pp.233-246
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    • 2012
  • In this study, we investigated the applicability of the photostimulated luminescence(PSL), thermoluminescence(TL) and electron spin resonance(ESR) methods for various foods which are not allowed to be irradiated in Korea. All 15 foods including sesame, almond, peanut, cocoa powder etc. were analyzed. Samples were irradiated at 1~10 kGy using a $^{60}Co$ gamma-ray irradiator. In PSL study, the photon counts of all the unirradiated samples showed negative(lower than 700). The photon counts irradiated(1 kGy) dried shrimp, roasted peanut and seasoned peanut showed positive(higher than 5,000) and the other samples were negative or intermediate(> 700 and < 5,000). In TL analysis, results showed that it is possible to apply TL method to all foods containing minerals. In ESR measurements, the ESR signal(single-line) intensity of irradiated foods was higher than non-irradiated foods. In particular, the specific ESR signals of irradiation-induced crystalline sugar, cellulose and bone radical were detected in dried plum, raisin, dried cherry, mango(dried, frozen), rambutan, cocoa(powder), cinnamon, parsley, carrot, broccoli, dried arrow squid, dried pollack and dried shrimp. According to the results, PSL, TL and ESR methods were successfully applied to detect the irradiated foods because TL method is not able to detect the irradiated foods rarely composed of minerals. ESR is also a difficult method to detect the changes of ESR signal patterns of food. It is concluded that TL analysis or ESR assay is suitable for detection of irradiated samples and a combined method is recommendable for enhancing the reliability of detection results.