• Title/Summary/Keyword: mandarin

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Detection of Xanthomonas axonopodis pv. citri on Satsuma Mandarin Orange Fruits Using Phage Technique in Korea

  • Myung, Inn-Shik;Hyun, Jae-Wook;Cho, Weon-Dae
    • The Plant Pathology Journal
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    • v.22 no.4
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    • pp.314-317
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    • 2006
  • A phage technique for detection of Xanthomonas axonopodis pv. citri, a causal bacterium of canker on Sastuma mandarin fruits was developed. Phage and ELISA techniques were compared for their sensitivity for detection of Xanthomonas axonopodis pv. citri on orange fruits. Both of techniques revealed a similar efficiency for the bacterial detection; the pathogenic bacteria were observed in pellet from the fruits with over one canker spot with below 2 mm in diameter. In field assays, the increase of phage population(120%) on surface of the fruits related to the disease development one month later indicated that the bacterial pathogens inhabit on the surface. The procedure will be effectively used for detection of only living bacterial pathogen on fruit surfaces of Satsuma mandarin and for the disease forecasting.

Effect of Water Temperature on Growth and Body Composition of Juvenile Mandarin Fish Siniperca scherzeri (사육 수온에 따른 쏘가리(Siniperca scherzeri) 치어의 성장 및 체조성 변화)

  • Kim, Yi-Oh;Lee, Sang-Min
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.49 no.5
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    • pp.607-611
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    • 2016
  • This study was conducted to investigate the effects of different water temperatures on growth, survival, biochemical composition, and blood physiological parameters of juvenile mandarin fish Siniperca scherzeri. Feed-trained juvenile fish were subjected to four water temperatures (20, 23, 26 and 29℃) with two replicate groups. The fish were fed to apparent satiation twice daily using a formulated diet containing 55% crude protein and 6% crude lipid. After the 8-week feeding trial, survival was >96% in all groups. Weight gain and feed efficiency of fish reared at 26 and 29℃ were higher than those reared at 20℃. The protein efficiency ratio, daily feed intake, and whole body proximate composition were not affected by water temperature. These results indicate that a suitable water temperature range for optimal growth and feed efficiency of juvenile mandarin fish is 26-29℃ under these experimental conditions.

Landmark-Guided Segmental Speech Decoding for Continuous Mandarin Speech Recognition

  • Chao, Hao;Song, Cheng
    • Journal of Information Processing Systems
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    • v.12 no.3
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    • pp.410-421
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    • 2016
  • In this paper, we propose a framework that attempts to incorporate landmarks into a segment-based Mandarin speech recognition system. In this method, landmarks provide boundary information and phonetic class information, and the information is used to direct the decoding process. To prove the validity of this method, two kinds of landmarks that can be reliably detected are used to direct the decoding process of a segment model (SM) based Mandarin LVCSR (large vocabulary continuous speech recognition) system. The results of our experiment show that about 30% decoding time can be saved without an obvious decrease in recognition accuracy. Thus, the potential of our method is demonstrated.

Initialness of Sentence-final Particles in Mandarin Chinese

  • Huang, Xiao You Kevin
    • Proceedings of the Korean Society for Language and Information Conference
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    • 2007.11a
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    • pp.182-191
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    • 2007
  • This paper gives a thorough investigation into Mandarin sentence-final particles (henceforth SFPs). First I induce core grammatical functions and semantic interpretations of SFPs. Based on Rizzi's (1997) Split CP hypothesis, I make some modifications to accommodate Mandarin SFPs and map them onto separate functional heads within a proper hierarchy. I also examine some empirical evidence of head directionality and tentatively assume Mandarin C is head-initial. To explain the surface head-final order, in light of Chomsky's (2001) Phase Theory and Hsieh's (2005) revised Spell-out hypothesis, I pose a CP complement to Spec movement. Following Moro's (2000) idea, I further claim the motivation behind is to seek for antisymetry.

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Removal of Phenthoate Residues During the Preparation of Dietary Fiber and Bioflavonoid from Mandarin Peels (밀감과피의 식이섬유 및 Bioflavonoid 정제 중 Phenthoate 잔류분의 제거)

  • 이서래;권영주;이미경
    • Journal of Food Hygiene and Safety
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    • v.12 no.1
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    • pp.39-46
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    • 1997
  • Mandarin orange fruits were artificially contaminated with an organophosphorus insecticide phenthoate by dipping and the residue level of phenthoate was investigated during the purification steps of dietary fiber or bioflavonoid. The removal rate of phenthoate at 8 and 0.5 ppm levels was 98% in the total dietary fiber, 99% in the insoluble dietary fiber and 99.8% in the soluble dietary fiber preparations. Kuring the preparation of biflavonoid from peels at a 5 ppm pesticide level, the removal rate was 90% in the intermediate extract and 99.9% in the final extract. In conclusion, phenthoate residues in the peels of mandarin orange were mostly removed during the preparation processes of dietary fiber of bioflavonoid and its residue level would not raise any problem in safety aspects of the purified products.

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A Study on Fruit Quality Identification Using YOLO V2 Algorithm

  • Lee, Sang-Hyun
    • International Journal of Advanced Culture Technology
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    • v.9 no.1
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    • pp.190-195
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    • 2021
  • Currently, one of the fields leading the 4th industrial revolution is the image recognition field of artificial intelligence, which is showing good results in many fields. In this paper, using is a YOLO V2 model, which is one of the image recognition models, we intend to classify and select into three types according to the characteristics of fruits. To this end, it was designed to proceed the number of iterations of learning 9000 counts based on 640 mandarin image data of 3 classes. For model evaluation, normal, rotten, and unripe mandarin oranges were used based on images. We as a result of the experiment, the accuracy of the learning model was different depending on the number of learning. Normal mandarin oranges showed the highest at 60.5% in 9000 repetition learning, and unripe mandarin oranges also showed the highest at 61.8% in 9000 repetition learning. Lastly, rotten tangerines showed the highest accuracy at 86.0% in 7000 iterations. It will be very helpful if the results of this study are used for fruit farms in rural areas where labor is scarce.

Pulsed electric field pasteurization of mandarin and carrot juices (Pulsed electric field 공정을 이용한 감귤 주스와 당근 주스 살균)

  • Lee, Seung Jo;Choi, Hyuk Joon;Min, Sea Cheol
    • Korean Journal of Food Science and Technology
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    • v.49 no.4
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    • pp.408-414
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    • 2017
  • Effects of pulsed electric field (PEF) processing on growth inhibition of indigenous aerobic microorganisms and the quality of mandarin and carrot juices were investigated. Mandarin juice was PEF-treated at 15-23 kV/cm for $23-241{\mu}s$, whereas carrot juice was treated at 13-14 kV/cm for 127-198 s. At $25^{\circ}C$ (inlet temperature), PEF treatments at 23 kV/cm for $104{\mu}s$ and 14 kV/cm for $198{\mu}s$ reduced the numbers of total mesophilic aerobes by $6.3{\pm}0.8$ and $5.5{\pm}0.9{\log}\;CFU/mL$ in mandarin juice and carrot juice, respectively. Elevation of inlet temperature to $40^{\circ}C$ increased the reduction rates in both juices. In general, the treatments resulting in the highest microbial inhibition at 25 and $40^{\circ}C$ did not alter the physicochemical and nutritional properties of both juices (p>0.05). PEF is a feasible technology to pasteurize mandarin and carrot juices commercially, with minimal quality deterioration.

Total replacement of dietary fish oil with alternative lipid sources in a practical diet for mandarin fish, Siniperca scherzeri, juveniles

  • Sankian, Zohreh;Khosravi, Sanaz;Kim, Yi-Oh;Lee, Sang-Min
    • Fisheries and Aquatic Sciences
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    • v.22 no.4
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    • pp.8.1-8.9
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    • 2019
  • A 12-week feeding trial was designed to evaluate the effect of total replacement of fish oil (FO) with terrestrial alternative oils on growth, feed utilization, body composition, hematological parameters, and fillet fatty acid profile of mandarin fish juveniles. Four iso-nitrogenous (56% crude protein) and iso-lipidic (13% crude lipid) practical diets were formulated. A control diet contained 6% FO and three other experimental diets were prepared by replacing FO with linseed oil, soybean oil, and lard (designed as FO, LO, SO, and lard, respectively). Each diet was randomly allocated to triplicate groups of 25 fish ($1.8{\pm}0.03g/fish$) in a circular tank. Complete replacement of FO by three tested alternative oils had no remarkable impact on growth performance, feed utilization efficiency, and morphological and hematological parameters of juvenile mandarin fish. However, daily feed intake was found to be significantly higher for fish fed the SO diet compared with those fed the FO and LO diets. Fish fed LO and SO diets exhibited significantly higher levels of the whole body lipid compared to fish fed diet containing FO. Fillet fatty acid composition reflected dietary fatty acid profile. The highest level of ${\alpha}$-linolenic acid, linoleic acid, and oleic acid was observed in fish fillet fed LO, SO, and lard, respectively. Although the eicosapentaenoic acid level of fish fillet fed diet FO was higher than other treatments, no significant difference was found in docosahexaenoic acid content among all dietary groups. The results of the present study clearly demonstrate that the complete replacement of FO in mandarin fish diets is achievable. These findings are useful in dietary formulation to reduce feed costs without compromising mandarin fish growth.

Quality Characteristics of Pan Bread Added with Citrus Mandarin Peel Powder (감귤과피 분말을 첨가한 식빵의 품질 특성)

  • Lee, Eun-Jin;Ju, Hyoung-Woog;Lee, Kwang-Suck
    • Culinary science and hospitality research
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    • v.18 no.1
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    • pp.27-39
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    • 2012
  • This study was conducted to examine the characteristics of bread quality as per addition rate of citrus mandarin peel powder since interests and concerns about healthy functional food have been increased in contemporary society. The result of mixogram from Mixograph showed that dough added with 3% citrus mandarin peel powder was suitable for baking quality. Stickiness of dough was decreased with addition of citrus mandarin peel powder. Compared with the controlled group, fermentation rate was decreased as the level of citrus mandarin peel powder increased while pH levels of dough and bread were significantly decreased. The TPA analysis showed that the hardness and adhesiveness levels increased as the level of citrus mandarin peel powder increased whereas springiness, cohesiveness and chewiness became decreased. Crumb fineness and elongation became higher as seen from the result of crumbScan. Volume and specific volume was decreased. The result of preference test presented that crumb color, texture, flavor and taste were the highest in the M3, which showed highest point in overall preference. In conclusion, M3 was the best in preference, taste and texture, thus determined as the optimal rate in association with the addition of citrus mandarin peel powder.

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Freshness of Satsuma Mandarin Packed in Anti-fogged MA Film with Acid Treated Zeolite (산 처리된 제올라이트와 결로 방지제를 함유한 MA 필름으로 포장한 감귤의 신선도)

  • Park, Hyung-Woo;Ryu, Na-Hee
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.19 no.1
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    • pp.35-41
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    • 2013
  • This study investigated the effect of functional MA films (FMA) incorporated with zeolite powder treated with 1 N HCL solution and anti-fogging agent on the freshness extension of Satsuma mandarin. Preference, weight loss, total ascorbic acid, sugar content, titratable acidity and gas composition in package of Satsuma mandarin were evaluated during storage at $15^{\circ}C$. After 120 days of storage, the weight loss of mandarin packed with LLDPE film (control, L) was 1%, FMA film (CA) was 1.6%. Total ascorbic acid content of Satsuma manderin in control was 19.97 mg%, those of CA was 24.25 mg%. The titratable acidity of Satsuma manderin in CA was higher than that of control, while soluble solids content of CA was lower than that of control after 120 days. Ethylene gas content of control was 89.5 ppm and those of CA was 73.6 ppm after 120 days. Quality of Satsuma mandarin packed with CA was better than that of control. It was verified that shelf-life of Satsuma mandarin in control was 100 days and those of CA film was 130 days. Quality of Satsuma mandarin was few different between treated with anti-fogging agent and non-treated, but commodity of film treated with anti-fogging agent was considered better than that of non-treated.

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