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Ensiling Techniques for Shrimp By-Products and their Nutritive Value for Pigs

  • Ngoan, L.D.;An, L.V.;Ogle, B.;Lindberg, J.E.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.9
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    • pp.1278-1284
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    • 2000
  • An experiment was performed to evaluate different methods for preserving shrimp by-products and to determine their chemical composition. In the first experiment three ratios of shrimp by-product (SBP) to molasses (6:1, 4:1 and 3:1, wet weight), and to cassava root meal (3:1, 2:1 and 1:1, wet weight of shrimp by-product and air-dry weight of cassava root meal) were investigated. The pH of the SBP ensiled with molasses at a ratio of 3:1, and with cassava root meal at a ratio of 1:1, decreased during the first week to below 4.5 and remained low up to day 56 of ensiling, whereas the pH of the mixtures with higher ratios of SBP remained above 7.0, and the material deteriorated rapidly. The dry matter decreased initially in all treatments but then increased slightly from day 28 in the treatment where shrimp by-product was ensiled with cassava root meal at a ratio of 1:1. The crude protein (CP) and ammonia-N $(NH_3-N)$ contents of the preserved shrimp by-product material ensiled with molasses at a ratio of 3:1 increased significantly one week after ensiling. The CP content then remained constant, while the $NH_3-N$ concentration continued to increase up to 56 days after ensiling. When SBP was ensiled with cassava root meal at a ratio of 1:1 the CP content of the silage increased significantly up to 21 days after ensiling and then decreased back to the original level after 56 days, whereas $NH_3-N$ increased markedly up to 14 days and then remained fairly constant up to 56 days. However, the $NH_3-N$ content was significantly higher when SBP was ensiled with cassava root meal than with molasses. A balance experiment was carried out, arranged as a double Latin-square and including 6 F1 (Large White ${\times}$ Mong Cai) castrates fed randomly one of three diets based on cassava root meal, rice bran, and fish meal (FM) or shrimp by-product ensiled with molasses (SBEMO) or with cassava root meal (SBECA) as the main protein source. Apparent organic matter and CP digestibilities were significantly (p<0.001) higher for the fish meal diet than for the two shrimp by-product diets, although CP digestibility in SBEMO and SBECA was similar (p>0.05). N-retention was significantly higher for the fish meal diet than for the SBEMO diet, which in turn was significantly higher than for the SBECA diet (p<0.01). It can be concluded that shrimp by-product can be preserved by ensiling with molasses at a ratio of 3:1 or with cassava root meal at a ratio of 1:1. Nutrient digestibility and N-retention of diets based on these shrimp by-product silages were lower than for similar diets based on fish meal, probably due to their high chitin content and inferior amino acid balance.

IN VITRO EFFECT OF PANAX GINSENG ON PHYTOHAEMAGGLUTININ-INDUCED LYMPHOCYTE TRANSFORMATION AND ITS IN VIVO EFFECT (식물성 혈구 응집소(Phytohaemagglutinin)로 유도한 림파구 변형에 관한 인삼의 in vitro 및 in vivo효과)

  • Chong S.K.F.;Brown H.A.;Rimmer E.;Oberholzer V.;Hindocha P.;Walker-Smith J .A.;Carruthers L.
    • Proceedings of the Ginseng society Conference
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    • 1984.09a
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    • pp.89-95
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    • 1984
  • The effect of hydrocortisone or Panax ginseng, and/or a combination of hydrocortisone and Panax ginseng on phytohaemagglutinin (PHA-P)-induced transformation of peripheral blood lymphocytes were studied in 4 normal healthy adult volunteers. Increasing concentrations of Panax ginseng 0.16-1.60${\mu}g$/ml caused a doserelated inhibition of PHA-P transformation of lymphocytes. A combination of 500${\mu}g$/ml hydrocortisone and 0.80${\mu}g$/ml Panax ginseng produced a greater suppression of PHA-P stimulation than either drug used alone. This suggests that Panax ginseng has a steroid-like effect in vitro, and may have a potentiating effect with hydrocortisone on T-cell mediated immunity. The in vivo effects of Panax ginseng were further studied in 6 healthy adult volunteers. PHA-P transformation studies were performed before and after Panax ginseng capsules were taken for 2 weeks and at a higher dosage at 4 weeks. Our results showed that in 3 subjects, there was significant inhibition of PHA-P transformation at 4 weeks.

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A Study of the Abilities of House-keeping of Korean Female Students (한국여자대학생의 가사능력에 관한 연구)

  • 박인덕
    • Journal of the Korean Home Economics Association
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    • v.11 no.4
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    • pp.399-413
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    • 1973
  • A Study of the Abilities of House-keeping of Korean Female Students. We tend to have much trouble in doing house-keeping with the lack of practical experience in our daily life in this age of information because we learn more things by vicarious experiences with the help of communication media such as radio, T.V. The purpose of this study is to contribute to the education of house-keeping and teaching of home economics which are essential to female students who will become good house-wives and good members of families. In this thesis, the fundamental items of every day life such as food, costume, and home management were made out in a questionnaire with a view to evaluating the abilities of students' house keeping by these data. A random sample was taken composing of juniors and seniors with the sample size, n = 581, out of the universities and Colleges in Korea ; i.e., Yonsei Univ., Korea Univ., Ewha Univ., Sukmyong Univ., Sung Shim Womans' College (at choon chun), Duk Sung Womans' College, etc. It is to be noted that home economics majors were excluded. The results are as follows 1. Out of the total 25 fundamental items about food the average ability in the case of "I can" is only 11 items, "I have experience" 7 items, and "I have no experience" 7 items. 2. Out of the total 20 fundamental items about costume the average ability, in the case of "I can" is 4 items, and "I have experience" 8 items, and "I have no experience" 8 items. 3. Out of the total 20 fundamental items about home management, the average ability, in the case of "I can" is 5-items. "I have experienc" 8-items, and "I have no experience" 6-items. The following conclusions have been reached on the basis of the above survey : a) On the whole students are poorest at practical house-keeping. b) It is to be pointed our that female students have little experience to participate in practical house keeping every daily life c) Female students are apt to have the self-confidence that they can carry on the house-keeping well. d) One may emphasize the point which tends to be neglected in home-education : each house wife should have the ability of practical house-keeping, mutual under-standing among family members, a sense of responsibility, coorperation and services as a good member of family.

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Inactivation of Brain myo-Inositol Monophosphate Phosphatase by Pyridoxal-5'-Phosphate

  • Kim, Dae-Won;Hong, Joung-Woo;Eum, Won-Sik;Choi, Hee-Soon;Choi, Soo-Hyun;Kim, So-Young;Lee, Byung-Ryong;An, Jae-Jin;Lee, Sun-Hwa;Lee, Seung-Ree;Kwon, Oh-Shin;Kwon, Hyeok-Yil;Cho, Sung-Woo;Lee, Kil-Soo;Park, Jin-Seu;Choi, Soo-Young
    • BMB Reports
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    • v.38 no.1
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    • pp.58-64
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    • 2005
  • Myo-inositol monophosphate phosphatase (IMPP) is a key enzyme in the phosphoinositide cell-signaling system. This study found that incubating the IMPP from a porcine brain with pyridoxal-5'-phosphate (PLP) resulted in a time-dependent enzymatic inactivation. Spectral evidence showed that the inactivation proceeds via the formation of a Schiff's base with the amino groups of the enzyme. After the sodium borohydride reduction of the inactivated enzyme, it was observed that 1.8 mol phosphopyridoxyl residues per mole of the enzyme dimer were incorporated. The substrate, myo-inositol-1-phosphate, protected the enzyme against inactivation by PLP. After tryptic digestion of the enzyme modified with PLP, a radioactive peptide absorbing at 210 nm was isolated by reverse-phase HPLC. Amino acid sequencing of the peptide identified a portion of the PLP-binding site as being the region containing the sequence L-Q-V-S-Q-Q-E-D-I-T-X, where X indicates that phenylthiohydantoin amino acid could not be assigned. However, the result of amino acid composition of the peptide indicated that the missing residue could be designated as a phosphopyridoxyl lysine. This suggests that the catalytic function of IMPP is modulated by the binding of PLP to a specific lysyl residue at or near its substrate-binding site of the protein.

Total Dietary Fiber and Mineral Absorption

  • Gordon, Dennis-T.
    • Journal of Nutrition and Health
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    • v.25 no.6
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    • pp.429-449
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    • 1992
  • The consumption of foods rich in TDF should not be associated with impaired mineral absorp-tion and long-term mineral status. In surveys of populations consuming high amounts of TDF e.g Third World populations and vegetarinas gross deficiencies in mineral nutrition have not been noted. If mineral status is low among these groups it is most likely caused by the inadequacy or imbalance of the diet and not by the TDF. The key word is interaction which should be inte-rpreted in dietary imbalances that produce nut-rient deficiencies. There are no strong data to support the concept that TDF inhibits mineral absorption through a binding chelation mechanism. Limited data sug-gest that positively charged groups on polymers such as chitosan and cholestyramine will decrease iron absorption in humans and animals. Because TDF does not contain positively charged groups future research should be directed at the possible role of protein consumed along with TDF and the combination of effects on mineral nutrition Phytic acid is acknowledged as a potent chela-tor of zinc. However its association with zinc and its propensity to lower Zn bioavaiability may enhance the absorption of other elements notably copper and iron. The importance of interactions among nutrients including TDF will gain addi-tional attention in the scientific community. Soluble and insoluble dietary fiber function di-fferently in the intestine. Insoluble fibers accele-rate movement through the intestine. Soluble die-tary fibers appear to regulated blood concentra-tions of glucose and cholesterol albeit by some unknown mechanism. In creased viscosity produ-ced by the SDF in the intestine may provide an explanation of how this class of polymers affects plasma glucose cholesterol and other nutrients. Employing a double-perfusion technique in the rat we demonstrated that viscosity produced by SDF will delay transfer of zinc into the circulatory system. This delayed absorption should not be interpreted as decreased utilization. A great deal of additional research is required to prove the importance of luminaly viscosity produced by SDF on slowing nutrient absorption or regulating bllod nutrient homeostasis. Increased intake of TDF in the total human diet appears desirable. A dietary intake of 35g/day should not be considered to have a negative effect on mineral absorption. It is important to educate people that an intake of more than 35g TDF/day may cause an imbalance in the diet that can adve-rsely affect mineral utilization. Acknowledgments. Appreciation is given to Dr. George V. Vahouny(deceased) who was intense a great competitor in and out of science and who gave the author inspiration Portions of this work were supported by the University of Missouri Ag-ricultural Station and by a grant from the Univer-rch Support Grant RR 07053 from the National Institutes of Health. Contribution of the Missouri Agriculatural Experiments Station Journal Series No. 10747.

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Zur praktischen Anwendung der deutschen Marchentexte fur den Sprach- und Kulturunterricht - In Bezug auf (언어$\cdot$문화교육을 위한 독일 민담텍스트 활용 방안 - 을 중심으로 -)

  • Rhie Jum-Chool;Kim Young-Soon;Kim Soo-Nam
    • Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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    • v.8
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    • pp.247-272
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    • 2003
  • Mit der Entwicklung der Informations- und Kommunikationstechnologien $er\"{o}ffnen$ $Internet-unterst\"{u}tzte$ Lehren und Lernen neue $M\"{o}glichkeiten{\;}f\"{u}r$ den Sprach- und Kulturunterricht. Das Internet bietet den $Sch\"{u}lern$ vor allem $gro{\ss}es$ Interesse und $gro{\ss}e$ Motivation $f\"{u}r$ die deutsche Sprache und Kultur. In der vorliegenden Arbeit geht es vor allem um die praktische Anwendung von den $M\"{a}rchentexten$ in der germanistischen Abteilung der koreanischen $Universit\"{a}ten$. $M\"{a}rchen$ sind ein Kulturgut, das sich in vielen $V\"{o}ilkern$, Kulturen und Gegenden der Erde findet. $M\"{a}rchen$ sprechen eine Sprache der Symbole und Bilder, eine Sprache, die den Menschen in seiner $Emotionalit\"{a}t$ besonders anspricht. Sie haben eine Anziehungskraft, die uns nicht $unber\"{u}hrt{\;}l\"{a}sst$. Sie zeigen in vie1en Kulturen Motive menschlichen Daseins, die $\"{u}bereinstimmende$ Merkmale zeigen. In dieser Studie wird insbesondere $\"{u}ber$ eine untenichtspraktische Anwendung des $M\"{a}rchens$ $f\"{u}r$ den Deutschunterricht diskutiert. In dieser Arbeit bezieht sich der wissenschaftliche Gebrauch des Kulturbegriffes meist auf kollektive Erscheinungen, die Gruppen von Individuen einigen. Mit Hilfe des Internets kann man verschiedene Kulturelemente in der bestimmten deutschen Stadt finden. Zum Beispiel hat die freie Hansestadt Bremen die wohlgeformte Homepage. In dieser Homepage(http://www.bremen.de/) gibt es viele Informationen $\"{u}ber$ die Stadt Bremen; Geschichte, Wrrtschaft, Wissenschaft, Schulsystem, Kultur, Sport, Freizeit usw. Schuler lernen erst elementare $W\"{o}rter$, Grammatik und dann wichtige kulturelle Elemente. $Erw\"{u}nscht$ waren wissenschaftlich fundierte Methoden $f\"{u}r$ den deutschen Kulturuntenicht und systematisch aufgebaute Internetseiten, die fur bestimmte Deutschkurse an den koreanischen $Universit\"{a}ten$ gedacht sind. Es ware ideal, audiovisuelle/multimediale Webseiten/Webpages mit Texten, Bildern, Webaufgaben und Audio-Nideofiles zu erstellen.

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A Study on the Recycling of Waste in the Limestone Mine (석탄석광산 폐석의 재활용 연구)

  • Chae, Young-Bae;Joeng, Soo-Bok;Koh, Won-Sik;Park, Je-Shin;Yang, Shi-Young
    • Resources Recycling
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    • v.5 no.4
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    • pp.25-31
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    • 1996
  • The wastes ot l~mestone mines have been cause the extrar.ngance of the valuablz m e r a l s and destruction of the environment. Therefore, \\-c tied ta separation of calcite illid clay from the limestone mine wastes by rotntmg screen type separator made by ourselves in order to recyding such us a raw matcriala for cement maimfacture. CaO amtents in the separated coarse products increased from 37.36 wt% to 42+2 wt% at the condition ihat water content in wastes was lzss than 6wt%, the passing time of specimen in &amber was 15 semnds and the rotation speed was 6OLl qm. A process in order lo separate wastes effectively to having wide range aI part~dcs ize was cstablishcd and CaO contents of coarsc products through this process increased to 46.85 wt%. Tbis rcsult is insuEiicient to directly rcusing as a raw malerials for cement. However, it is supposed that coarse products would be able to be reuscd as a raw materials uf cement, if only it rs sclected dolomite in wastes, and really it may be possible in fields Othenvise, undcrsize products(less than 20 mm) would be able to recycling as a raw of cement bccause chcmicrl campasitions of thosc is kept almost constant v&cs on the overall process.

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Statistical Analysis of Count Rate Data for On-line Seawater Radioactivity Monitoring

  • Lee, Dong-Myung;Cong, Binh Do;Lee, Jun-Ho;Yeo, In-Young;Kim, Cheol-Su
    • Journal of Radiation Protection and Research
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    • v.44 no.2
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    • pp.64-71
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    • 2019
  • Background: It is very difficult to distinguish between a radioactive contamination source and background radiation from natural radionuclides in the marine environment by means of online monitoring system. The objective of this study was to investigate a statistical process for triggering abnormal level of count rate data measured from our on-line seawater radioactivity monitoring. Materials and Methods: Count rate data sets in time series were collected from 9 monitoring posts. All of the count rate data were measured every 15 minutes from the region of interest (ROI) for $^{137}Cs$ ($E_{\gamma}=661.6keV$) on the gamma-ray energy spectrum. The Shewhart ($3{\sigma}$), CUSUM, and Bayesian S-R control chart methods were evaluated and the comparative analysis of determination methods for count rate data was carried out in terms of the false positive incidence rate. All statistical algorithms were developed using R Programming by the authors. Results and Discussion: The $3{\sigma}$, CUSUM, and S-R analyses resulted in the average false positive incidence rate of $0.164{\pm}0.047%$, $0.064{\pm}0.0367%$, and $0.030{\pm}0.018%$, respectively. The S-R method has a lower value than that of the $3{\sigma}$ and CUSUM method, because the Bayesian S-R method use the information to evaluate a posterior distribution, even though the CUSUM control chart accumulate information from recent data points. As the result of comparison between net count rate and gross count rate measured in time series all the year at a monitoring post using the $3{\sigma}$ control charts, the two methods resulted in the false positive incidence rate of 0.142% and 0.219%, respectively. Conclusion: Bayesian S-R and CUSUM control charts are better suited for on-line seawater radioactivity monitoring with an count rate data in time series than $3{\sigma}$ control chart. However, it requires a continuous increasing trend to differentiate between a false positive and actual radioactive contamination. For the determination of count rate, the net count method is better than the gross count method because of relatively a small variation in the data points.

Computer Vision-based Continuous Large-scale Site Monitoring System through Edge Computing and Small-Object Detection

  • Kim, Yeonjoo;Kim, Siyeon;Hwang, Sungjoo;Hong, Seok Hwan
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.1243-1244
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    • 2022
  • In recent years, the growing interest in off-site construction has led to factories scaling up their manufacturing and production processes in the construction sector. Consequently, continuous large-scale site monitoring in low-variability environments, such as prefabricated components production plants (precast concrete production), has gained increasing importance. Although many studies on computer vision-based site monitoring have been conducted, challenges for deploying this technology for large-scale field applications still remain. One of the issues is collecting and transmitting vast amounts of video data. Continuous site monitoring systems are based on real-time video data collection and analysis, which requires excessive computational resources and network traffic. In addition, it is difficult to integrate various object information with different sizes and scales into a single scene. Various sizes and types of objects (e.g., workers, heavy equipment, and materials) exist in a plant production environment, and these objects should be detected simultaneously for effective site monitoring. However, with the existing object detection algorithms, it is difficult to simultaneously detect objects with significant differences in size because collecting and training massive amounts of object image data with various scales is necessary. This study thus developed a large-scale site monitoring system using edge computing and a small-object detection system to solve these problems. Edge computing is a distributed information technology architecture wherein the image or video data is processed near the originating source, not on a centralized server or cloud. By inferring information from the AI computing module equipped with CCTVs and communicating only the processed information with the server, it is possible to reduce excessive network traffic. Small-object detection is an innovative method to detect different-sized objects by cropping the raw image and setting the appropriate number of rows and columns for image splitting based on the target object size. This enables the detection of small objects from cropped and magnified images. The detected small objects can then be expressed in the original image. In the inference process, this study used the YOLO-v5 algorithm, known for its fast processing speed and widely used for real-time object detection. This method could effectively detect large and even small objects that were difficult to detect with the existing object detection algorithms. When the large-scale site monitoring system was tested, it performed well in detecting small objects, such as workers in a large-scale view of construction sites, which were inaccurately detected by the existing algorithms. Our next goal is to incorporate various safety monitoring and risk analysis algorithms into this system, such as collision risk estimation, based on the time-to-collision concept, enabling the optimization of safety routes by accumulating workers' paths and inferring the risky areas based on workers' trajectory patterns. Through such developments, this continuous large-scale site monitoring system can guide a construction plant's safety management system more effectively.

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The responsibility of C-terminal domain in the thermolabile haemolysin activity of Vibrio parahaemolyticus and inhibition treatments by Phellinus sp. extracts

  • Tran Thi Huyen;Ha Phuong Trang;Nguyen Thi-Ngan;Bui Dinh-Thanh;Le Pham Tan Quoc;Trinh Ngoc Nam
    • Fisheries and Aquatic Sciences
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    • v.26 no.3
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    • pp.204-215
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    • 2023
  • The thermolabile haemolysin (tlh) of Vibrio parahaemolyticus (Vptlh) from V. parahaemolyticus is a multiple-function enzyme, initially describes as a haemolytic factor activated by lecithin and phospholipase A2 enzymatic activity (Shinoda, 1991; Vazquez-Morado, 2021; Yanagase et al., 1970). Until now, the tlh structure has hypothesized including N-terminal and C-terminal domain, but what domain of the Vptlh structure does the haemolytic activity has not been refined yet. In this study, a 450-bp VpTLH nucleotide sequence of the entire Vptlh gene encoded the C-terminal domain cloned firstly to examine its responsibility in the activity of the Vptlh. The C-terminal domain fused with a 6-His-tag named the His-tag-VpC-terminal domain was expressed successfully in soluble form in the BL21 (DE3) PlysS cell. Remarkably, both expression and purification results confirmed a high agreement in the molecular weight of the His-tag-VpC-terminal domain was 47 kDa. This work showed the His-tag-VpC-terminal domain lysed the erythrocyte membranes in the blood agar and the phosphate buffered saline (0.9%) media without adding the lecithin substrate of the phospholipase enzyme. Haemolysis occurred at all tested diluted concentrations of His-tag-VpC-terminal domain (p < 0.05), providing evidence for the independent haemolytic activity of the His-tag-VpC-terminal domain. The content of 100 ㎍ of the His-tag-VpC-terminal domain brought the highest haemolytic activity of 80% compared to that in the three remaining contents. Significantly, the His-tag-VpC-terminal domain demonstrated not to involve the phospholipase activity in Luria-Bertani agar supplemented with 1% (vol/vol) egg yolk emulsion. All results proved the vital responsibility of the His-tag-VpC-terminal domain in causing the haemolytic activity without the required activation by the phospholipase enzyme. Raw extracts of Phellinus igniarus and Phellinus pipi at 10-1 mg/mL inhibited the haemolytic activity of the His-tag-VpC-terminal domain from 67.7% to 87.42%, respectively. Hence applying the His-tag-VpC-terminal domain as a simple biological material to evaluate quickly potential derivatives against the Vptlh in vivo conditions will accessible and more advantageous than using the whole of the Vptlh.