• Title/Summary/Keyword: Texture Profile

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Quality Characteristics of Oat Bread with Wild Carrot (Daucus carota L.) Powder (야생당근 분말을 첨가한 귀리식빵의 품질특성)

  • Park, Sun-Ye;Kim, Ae-Jung;Han, Myung-Ryun
    • Journal of the Korean Society of Food Culture
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    • v.33 no.1
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    • pp.55-61
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    • 2018
  • This study examined the quality of bread made from a wheat flour, oat powder, and wild carrot powder mixture. The lightness and redness values decreased with increasing amount of wild carrot powder addition, while the yellowness was increased significantly. In a sample of wild carrot powder addition, the total volume was lower than the control. The texture profile analysis of oat bread, such as hardness, gumminess and cohesiveness decreased significantly with increasing amount of wild carrot powder addition. In the case of springiness, the value was not significant. The sensory evaluation of oat bread was significantly different in all analyses. Oat bread (BCB2.0) containing 2.0% (w/w) wild carrot powder showed the highest value in the four sensory evaluation items. Therefore, the 2.0% (w/w) addition of wild carrot powder addition was appropriate. An analysis of the physicochemical active component and DPPH scavenging activity of oat bread revealed a higher total flavonoid and total polyphenol content than normal bread. The DPPH scavenging activity was also 20.3% compared to the wild carrot powder. The availability of wild carrot powder in oat bread could be identified.

Quality Characteristics and Antioxidant Activity of Gaeseong-Juak prepared with Prunus yedoensis Matsumura Extract (화피 추출물이 첨가된 개성주악의 품질특성 및 항산화 활성)

  • Joo, Shin-Youn
    • The Korean Journal of Food And Nutrition
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    • v.26 no.1
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    • pp.92-100
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    • 2013
  • This study investigated the quality and antioxidative properties of a Korean fried rice cake, Gaeseong-Juak (doughnut of waxy rice) added with Prunus yedoensis Matsumura (PYM) extract, vitamin C and BHT. Gaeseong-Juak was prepared by adding PYM extract at 0, 0.5, 1, and 2% of waxy rice powder. The moisture contents of Gaeseong-juak added with PYM extract varied between 17.50% and 21.70%. Among the samples, the lowest moisture content was 2% Gaeseong-juak added with PYM extract. The contents of the samples obtained from crude protein, crude fat, crude ash were 4.47~4.73, 11.15~12.50, and 0.73~0.82%, respectively. The as the content of PYM extract increased, L-values significantly decreased while a-value and b-value significantly increased (p<0.001). The texture profile analysis of the Gaeseong-Juak was not significantly different at the samples. In the sensory test, the sample containing 0.5% PYM extract obtained good scores. The antioxidative effect of the Gaeseong-Juak significantly increased as the addition level increased, compared to the original Gaeseong-Juak (p<0.001). From these results, we suggest that PYM is a good ingredient for increasing the consumer acceptability and the functionality of Gaeseong-Juak.

Optimization of Wet Noodle with Onion Juice using Response Surface Methodology (양파즙 첨가 생면의 최적화)

  • Shin, Weon-Sun;Shin, Eun-Soo;Lyu, Eun-Soon
    • Korean journal of food and cookery science
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    • v.25 no.1
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    • pp.31-38
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    • 2009
  • The noodle is one of the most popular meal as a main dish in Korea and onions are reported to contain high levels of flavonoids such as quercetin, aglycone, and quercetin 4-glycoside. This study was conducted to develop the wet noodle with onion juice and to examine the cooking quality, textural properties of it. Five sensory attributes such as gloss, chewiness, adhesiveness, odor, and taste were used for sensory evaluations. Optimal amount of onion(149.5 g) and salt (6.5 g) satisfied target sensory score(7.0) was suggested by response surface methodology. The wet noodle with optimal amount of onion juice and salt was tasted by 100 consumer and showed high score(6.67) in overall acceptability. Cooking quality was measured through absorption of water, volume, degree of turbidity. The volume, water absorption, and cooking water turbidity of cooked wet noodle with onion juice(experimental noodle) were significantly(p<0.01) higher than the control one. Texture profile analysis of experimental noodle showed a lower score of hardness, adhesiveness, springiness, and chewiness. However, it appeared that the experimental noodle showed higher score for cohesiveness than the control noodle.

Physicochemical, Textural, and Sensory Properties of Low-fat/reduced-salt Sausages as Affected by Salt Levels and Different Type and Level of Milk Proteins

  • Lee, Hong-Chul;Chin, Koo-Bok
    • Food Science and Biotechnology
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    • v.18 no.1
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    • pp.36-42
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    • 2009
  • This study was performed to develop low-fat/reduced-salt sausages (LFRSS; <3% fat and <1.5% salt) containing milk protein (whey protein concentrate, WPC, or sodium caseinate, SC) that showed the similar cooking yield and textural characteristics to those of regular-fat/salt sausage control (RFC; 20% fat and 1.5% salt) or low-fat sausage control (LFC; <3% fat and 1.5% salt). Low-fat sausages (LFS) were formulated with a 2.5% fat replacer (konjac flour:carrageenan:soy protein isolate=1:1:3) and various salt levels (0.75, 1.0, 1.25, and 1.5%). LFS had differences in color and expressible moisture (EM, %) values as compared to those of RFC. A minimum salt level of 1% and addition of nonmeat proteins were required to manufacture LFRSS that have similar characteristics to those of RFC. However, LFS with 2% milk proteins reduced the hardness and gumminess as compared to LFC. These results indicated that 1% milk protein in combined with 1% salt was a proper level for manufacturing of LFRSS.

Antioxidant Activity and Quality Characteristics of Cookies with Chestnut Inner Shell (율피 분말을 첨가한 쿠키의 항산화 활성 및 품질 특성)

  • Joo, Shin-Youn;Choi, Hae-Yeon
    • The Korean Journal of Food And Nutrition
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    • v.25 no.2
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    • pp.224-232
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    • 2012
  • This study was conducted to investigate the effect of chestnut inner shell powder on antioxidant activity and the quality characteristics of cookies. Cookies were prepared with different amounts of chestnut inner shell powder(in ratios of 0, 0.5, 1, 3 and 5% to the flour quantity). The antioxidant activity was estimated by DPPH free radical scavenging activity and the total phenol content in chestnut inner shell powder and cookies. For analyzing quality characteristics, bulk density and pH of the dough, spread factor, loss rate, leavening rate, color, texture profile analysis, and sensory evaluations were measured. The spread ratio, a values, total phenol contents and DPPH free radical scavenging activity of cookies significantly increased with increasing chestnut inner shell powder(p<0.001), while the pH of the dough, L values and b values of the cookies significantly decreased with increasing chestnut inner shell powder content(p<0.001). The consumer acceptability score for the 3% chestnut inner shell cookie groups ranked significantly higher(p<0.01) than those of the other groups in overall preference, flavor, taste and color. From these results, we suggest that chestnut inner shell is a good ingredient for increasing the consumer acceptability and the functionality of cookies.

Characterization of Restructured Meat Products Manufactured with PSE Pork Hams as Compared to Those with Normal Pork Counterparts (정상육과 PSE 돈육으로 제조된 재구성 육제품의 품질 특성)

  • Mueller, Wolf-Detrich;Koo B. Chin
    • Food Science of Animal Resources
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    • v.23 no.4
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    • pp.321-326
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    • 2003
  • The objectives of this study were to develop restructured meat products(RMPs) using a transgluta-minase(TGase) and to improve the textural characteristics of RMPs manufactured with pale, soft, exudative(PSE) pork hams. The pH values of RMPs with PSE and normal pork were 5.94 and 6.07, respectively, and their water activity value was approximately 0.981. The RMPs had 70∼72% moisture, 4∼5% fat, 19∼20% protein, and approximately 3% ash contents. No differences in pH, water activity, chemical composition, and hunter color values were observed between RMPs manufactured with normal and PSE pork(p>0.05). However, RMPs containing PSE pork hams had higher drip loss(%)(p>0.05) than those with normal pork hams after 10 days of refrigerated storage. Although no differences were observed in the texture profile analysis(TPA) hardness and sensory evaluation, RMPs with PSE pork hams tended to have more pores and lower binding capacity those with normal pork. This result indicated that additional substrates or longer tumbling time(>4 hr) for the manufacture of RMPs containing PSE pork were required for the products to have similar palatability to those with normal pork.

Effect of succinylation on functional properties of soy protein isolate and qualities of soy bean curd (Succinyl화가 대두 단백질의 기능성과 두부의 품질에 미치는 영향)

  • 김수희
    • Journal of the Korean Home Economics Association
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    • v.28 no.4
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    • pp.41-50
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    • 1990
  • Soy protein was isolated from Korean soy bean 'Chang ryub' and chemically modified with succinic anhydride. Functionality of the soy protein isolate(SPI), succinylated SPI(SPPI), and PP590(commercial) at various pH were investigated. The mechanical and sensory properties of soy bean curds made from several mixing ratio of succinylated soy bean milk were observed. The solubility of SPI significantly increased with succinylation. The solubility of PP590 was lower than that of SSPI. The solubility of SPPI increased significantly in 0.03M CaCl2 solution. The emulsifying activity of SSPI increased. On the range of pH above pI the emulsifying activity of PP590 was higher than that of SPI. There was no difference in emulsion stability among the groups. The foam expansion capacity of SPPI increased at higher pH than pI but the foam stability decreased significantly above pH 9. Mechanical texture profile analysis revealed the modified soy bean curds had the lower hardniss, chewiness and cohesiveness with increased modification. The mechanical characteristics of modified soy bean curds revealed generalized Maxwell Model of 7-elements or 5-elements. In sensory evaluation, the hardness, the springiness and acceptability of modified soy bean curds were lower significantly than those of control soy bean curd.

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Sensory Profiles of Cooked Rice, Including Functional Rice and Ready-to-Eat Rice by Descriptive Analysis (묘사분석에 의한 기능성쌀밥 및 즉석밥의 관능프로필)

  • Kim, Dong-Hee;Kim, Hee-Sup
    • Korean journal of food and cookery science
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    • v.23 no.5
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    • pp.761-769
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    • 2007
  • The purpose of this study was to provide the sensory profiles for cooked rice varieties, with 3 types of functional rice and 4 types of ready -to -eat rice, using descriptive analysis. Eighteen descriptors as well as reference standards were developed. The cooked functional rice, ready-to-eat rice, and plain cooked rice were separated into 4 groups by PCA. PC1 & PC2 explained 65% of the total valiance. PC 1 was responsible for the highest percentage of separation based on the texture intensities. The cooked functional rice showed higher intensity for hardness and roughness. The ready-to-eat rice A, B, and C samples had higher intensities in terms of moistness, glossiness, and moisture content, as well as sour and raw rice flavor. The ready-to-eat rice D sample had low grain wholesomeness, and high intensity for raw rice flavor. Finally, the plain cooked rice had more roasted and burnt rice flavor.

Physicochemical Quality of Functional Gluten-Free Noodles added with Nondigestible Maltodextrin (난소화성 말토덱스트린을 첨가한 기능성 글루텐 프리면의 이화학적 품질 특성)

  • Nam, Seung-Woo;Kim, Eun;Kim, Meera
    • Journal of the East Asian Society of Dietary Life
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    • v.25 no.4
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    • pp.681-690
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    • 2015
  • In this study, gluten-free noodles were developed and the physicochemical quality of gluten-free noodles added with nondigestible maltodextrin (NMD) was also investigated. The gluten-free noodles were prepared by addition of 0, 5, 7, and 9% NMD of total ingredients except water. Inhibition activities for ${alpha}$-amylase and ${alpha}$-glucosidase according to the addition amounts of NMD were evaluated. As a result, activities of carbohydrate-digestive enzymes decreased with an increase of the added NMD amounts. Water binding capacity and solubility of raw noodles increased upon NMD addition. Swelling power also increased as temperature rose. L value of raw noodles decreased with the addition of NMD, but b value increased. Texture profile analysis of cooked noodles showed reduction of hardness, springiness, and chewiness of noodles with NMD. On the other hand, tensile strength of cooked noodles containing up to 7% NMD was not significantly different from that of noodle without NMD. In the sensory evaluation, elasticity of noodles with 9% NMD was lower than that of other noodles, whereas other characteristics of noodles were not significantly different among noodles. Therefore, it was confirmed that the addition of 5~7% NMD had little effect on the sensory quality of noodles.

Improvement of Active Shape Model for Detecting Face Features in iOS Platform (iOS 플랫폼에서 Active Shape Model 개선을 통한 얼굴 특징 검출)

  • Lee, Yong-Hwan;Kim, Heung-Jun
    • Journal of the Semiconductor & Display Technology
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    • v.15 no.2
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    • pp.61-65
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    • 2016
  • Facial feature detection is a fundamental function in the field of computer vision such as security, bio-metrics, 3D modeling, and face recognition. There are many algorithms for the function, active shape model is one of the most popular local texture models. This paper addresses issues related to face detection, and implements an efficient extraction algorithm for extracting the facial feature points to use on iOS platform. In this paper, we extend the original ASM algorithm to improve its performance by four modifications. First, to detect a face and to initialize the shape model, we apply a face detection API provided from iOS CoreImage framework. Second, we construct a weighted local structure model for landmarks to utilize the edge points of the face contour. Third, we build a modified model definition and fitting more landmarks than the classical ASM. And last, we extend and build two-dimensional profile model for detecting faces within input images. The proposed algorithm is evaluated on experimental test set containing over 500 face images, and found to successfully extract facial feature points, clearly outperforming the original ASM.