• 한국축산식품학회지
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• 제32권4호
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• pp.458-466
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• 2012

In this study, consumer preferences toward traditional cheeses were investigated with Tulum cheese sample which is one of the traditional cheeses of Turkey. Type of milk used for Tulum cheese making was identified as the most important factor, followed by Tulum cheese's texture, price, salinity, fat content, origin and flavour. The ideal Tulum cheese profile for the overall consumers was made with cow milk, a hard texture, a price of 20 TL per kg, a low salt cheese, a full fat cheese, the regional cheese which belongs to Izmir region and a mild-flavoured cheese.A cluster analysis revealed there were two clusters with different ideal product profiles. Cluster 1's ideal Tulum cheese comprised a soft texture, a mild-flavoured cheese, a cheese made with cow milk, a full fat cheese, a low salt cheese, the regional cheese which belongs to Izmir region and a price of 10 TL per kg. Cluster 2 differed from cluster 1 in that its ideal Tulum cheese was a hard textured cheese and priced at 20 TL per kg. The consumers in cluster 2 were less price sensitive than those in cluster 1. In addition to, the consumers in both segments are ready to pay extra money for regional Tulum cheese versus non-regional Tulum cheese. We found that the older ones were more willing to pay as compared to younger individuals. Young people are critical target consumers for Tulum cheese marketers. The findings on cluster 1's ideal Tulum cheese of this study could therefore provide guidance to marketing managers.

• 한국축산식품학회지
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• 제39권2호
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• pp.324-331
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• 2019

The objective of this study was to evaluate physicochemical and sensory properties, the texture profile, and antioxidant activity of ginseng extract-supplemented quark cheese as a new cheese product intended to improve public health. After addition of less than 1.0% ginseng extract, the moisture content of quark significantly decreased, while fat and protein levels increased, although microbial counts and lactose and ash contents were not affected significantly (p<0.05). In terms of color, $L^*$ values decreased significantly with increasing concentration of ginseng extract, while $a^*$ values increased significantly (p<0.05). The results of texture profiling showed that cohesiveness and springiness were unaffected, whereas hardness, gumminess, and chewiness increased significantly. The 2,2'-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical-scavenging activities of the cheese fortified with 0%, 0.5%, or 1.0% of the ginseng extract were $4.22%{\pm}0.12%$, $20.14%{\pm}1.34%$, and $56.32%{\pm}1.54%$, respectively. The results of sensory analysis indicated that bitterness, ginseng odor, and aftertaste significantly improved with increasing concentration of ginseng extract (p<0.05). However, there was no significant difference in the overall quality attributes of quark cheese between the no-supplement control and samples with less than 0.5% of the ginseng extract (p>0.05), suggesting that these products could help to promote public health as functional foods.

• 산업식품공학
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• 제23권3호
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• pp.217-222
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• 2019

다시마를 첨가한 건어묵 면의 수분함량의 평균값은 3.71±0.12%이었으며 수분활성도는 0.185-0.332로 다시마 분말함유량이 증가할수록 수분활성도가 낮아졌다. 재수화도는 다시마 분말함유량이 3%와 5%일 때, 각각 1.49, 1.77 g water/g solid로 대조군에 비해 증가하였다. 색도 측정결과 녹색계열의 다시마 분말함유량이 증가할수록 명도, 적색도 및 황색도 값이 낮아지는 결과를 볼 수 있었다. TPA를 이용한 조직감분석에서는 다시마 분말의 함유량이 증가할수록 탄력성은 증가하였고 경도와 씹힘성이 낮아졌다. 관능검사 결과로 5% 다시마 분말을 첨가한 어묵 면이 조직감, 맛, 전체적인 기호도 평가에서 가장 높게 나타났으며 면발의 단단함에 대한 강도에서는 다시마 분말의 함량이 많아질수록 낮은 결과를 나타내었다.

• 한국식생활문화학회지
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• 제37권2호
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• pp.171-177
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• 2022

This study evaluated the nutritional composition and quality traits of rabbit meat as compared to chicken meat. Samples of loin (M. longissimus dorsi) and breast meats were collected from rabbit and chicken carcasses, respectively. The meats were then analyzed for the proximate composition, collagen and energy contents, fatty acid composition, myoglobin and heme iron contents, pH value, water-holding capacity (WHC), cooking loss, meat color, Warner-Bratzler shear force (WBSF) value, and texture profile. Compared to chicken breast meat, lower (p<0.05) protein content and higher (p<0.05) ash and collagen contents were obtained in rabbit loin meat. Rabbit meat remarkably had higher (p<0.05) total polyunsaturated fatty acids (PUFA) and linolenic acid contents and lower (p<0.05) n-6/n-3 PUFA ratio as compared to chicken meat. The pH value and WHC were lower (p<0.05) in rabbit meat than in chicken meat (p<0.05). Rabbit meat exhibited lower (p<0.05) L^* value and higher (p<0.05) a^* and b^* values compared to chicken meat (p<0.05). The WBSF value, hardness, and gumminess were higher (p<0.05) in rabbit meat than in chicken meat (p<0.05). These findings suggest that rabbit meat has higher essential n-3 PUFA, darker color, and firmer texture as compared to chicken meat.

• 자원환경지질
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• 제57권1호
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• pp.25-39
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• 2024

The Téra manganese deposit represents the most significant manganese mineralization discovered in Niger up today. The main host rocks of this ore are gondites, which are a garnet and quartz rich metamorphic rocks. The supergene weathering developed an alteration profile on these gondites. This study aims to identify the mineralogical composition of gondites and associated rocks, in order to highlight the origine of rocks and the manganese enrichment. The methodological approach adopted involved a field study followed by polarizing microscopic analysis using transmitted and reflected lights. Additionally, quantitative X-ray diffraction (XRD) analysis was performed to assess the manganese ore minerals present in the gondite and associated rocks, including mica schists, amphibolites, and quartzites. The petrographic study revealed a paragenesis characterized by the presence of kyanite, staurolites, garnets and plagioclases that are generally poikiloblasts with quartz and opaque minerals inclusions, emphasizing the internal schistosity which is planar, helicitic or microfolded. These features indicate a prograde metamorphism until high-pressure amphibolite facies conditions. These conditions are followed by greenschist facies conditions marked by calcite, epidote, muscovite, chlorite and muscovite assemblage which emphasizes the vertical tectonics. Depending on the alteration process, the manganese ore exhibit a granular texture at the bottom of the gondite hills, transitioning to a colloform texture towards the top, passing through the epigenization and replacement texture. The XRD analysis further revealed that the studied rocks originated from a volcano-sedimentary complex, characterized by alternating marly, arenaceous and pelitic sequences associated with submarine exhalations.

• Animal Bioscience
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• 제37권7호
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• pp.1277-1288
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• 2024

Objective: This study was aimed to investigate the effect of fresh and dried hydrolyzed Cordyceps militaris (CM) mushroom with proteolytic enzymes; bromelain (CMB), flavorzyme (CMF), and mixture of bromelain: flavorzyme (CMBF) on quality properties of spent hen chicken. Methods: Mushroom extract (CME) were combined with three proteolytic enzyme mixtures that had different peptidase activities; stem bromelain (CMB), flavorzyme (CMF), and mixture of stem bromelain:flavorzyme (CMBF) at (1:1). The effect of these hydrolysates was investigated on spent hen breast meat via dipping marination. Results: Hydrolyzation positively alters functional properties of CM protease. in which bromelain hydrolyzed group (CMB) displayed the highest proteolytic activity at 4.57 unit/mL. The antioxidant activity had a significant increment from 5.32% in CME to 61.79% in CMB. A significantly higher emulsion stability index and emulsification activity index compared to CME were another result from hydrolyzation (p<0.05). Texture properties along with the shear force value and myofibrillar fragmentation index were notably improved under CMB and CMBF in fresh condition. Marination with CM mushroom protease that was previously hydrolyzed with enzymes was proven to also increase the nucleotide compounds, indicated by higher adenosine 5'-monophosphate (AMP) and inosine 5'-monophosphate (IMP) in hydrolysate groups (p<0.05). The concentration of both total and insoluble collagen remained unchanged, meaning less effect from CM protease. Conclusion: This study suggested the hydrolyzation of CM protease with bromelain or a mixture of bromelain:flavourzyme to significantly improve functional properties of protease and escalate the taste-related nucleotide compounds and texture profiles from spent hen breast meat.

• Agricultural and Biosystems Engineering
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• 제5권1호
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• pp.10-20
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• 2004

Precision agriculture aims to minimize costs and environmental damage caused by agriculture and to maximize crop yield and profitability, based on information collected at within-field locations. In this process, quantification of soil physical properties, including soil strength, would be useful. To quantify and manage variability in soil strength, there is need for a strength sensor that can take measurements continuously while traveling across the field. In this paper, preliminary analyses were conducted using two datasets available with current technology, (1) cone penetrometer readings collected at different compaction levels and for different soil textures and (2) tillage draft (TD) collected from an entire field. The objective was to provide information useful for design of an on-the-go soil strength profile sensor and for interpretation of sensor test results. Analysis of cone index (CI) profiles led to the selection of a 0.5-m design sensing depth, 10-MPa maximum expected soil strength, and 0.1-MPa sensing resolution. Compaction level, depth, texture, and water content of the soil all affected CI. The effects of these interacting factors on data obtained with the soil strength sensor should be investigated through experiments. Spatial analyses of CI and TD indicated that the on-the-go soil strength sensor should acquire high spatial-resolution, high-frequency ($\ge$ 4 Hz) measurements to capture within-field spatial variability.

• Asian-Australasian Journal of Animal Sciences
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• 제20권4호
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• pp.588-597
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• 2007

Low-fat ground pork patties, LFGPP (<10% total fat) formulated with 0.1, 0.2 and 0.3 percent sodium alginate (SA) were processed and compositional, processing and sensory characteristics were compared with control patties containing 20% fat. The moisture content of raw and cooked LFGPP were significantly (p<0.05) higher than control patties because of greater amount of added water in the formulation. The cooking yield, moisture and fat retention also increased linearly in different treatments of LFGPP. The dimensional parameters such as gain in height, decrease in diameter and shrinkage were significantly (p<0.05) lower in LFGPP in comparison to control. Amongst the sensory attributes, flavour showed a declining trend with the increase in concentration of SA in LFGPP. However, low-fat patties with 0.1% SA rated similar to high-fat control. The lipid profile revealed 49.78 and 43.22% decrease in total lipids and cholesterol content respectively, compared to control. The calorie content was reduced significantly (p<0.05) in LFGPP. The texture profile of LFGPP with 0.1% SA was similar to that of high-fat control. The LFGPP remained stable without any appreciable loss of physico-chemical, microbiological and organoleptic quality during refrigerated storage ($4{{\pm}}1^{\circ}C$) for 21 and 35 days in aerobic and vacuum packaging respectively.

• 한국조리학회지
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• 제20권4호
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• pp.310-321
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• 2014

본 연구는 국수 제조 시 전분의 첨가가 물리적 특성과 관능적인 기호도의 보완이 이루어질 것을 기대하여 국수 제조 시 전분의 종류(감자, 고구마, 옥수수)를 달리하여 첨가하여 제조하고, mixogram, 수분, 색도, texture, 인장강도 및 관능검사를 통하여 가장 품질이 우수한 전분의 종류를 밝혀내고자 하였다. Mixogram을 이용한 반죽의 특성에서 전분이 첨가되면 반죽 형성 시간이 단축되는 것으로 나타났고, 반죽 내구성을 나타내는 mixing tolerance는 대조군보다 감자전분, 고구마전분, 옥수수전분을 첨가한 국수시료들에서 높아 낮아 전분 첨가에 의해 반죽의 내구성이 증가함을 알 수 있었다. 전분을 넣어 제조한 생면의 수분함량은 감자전분, 고구마전분, 대조군, 옥수수전분 순이었고, 생면 중 명도가 가장 높은 것은 옥수수전분을 첨가한 시료이었고, 조리면의 경우에는 감자전분을 첨가한 국수이었다. 생면의 경도는 전분을 첨가하지 않은 대조군이 가장 컸고, 씹힘성의 경우 고구마전분 첨가 국수가 가장 컸으며, 조리면의 경도는 옥수수전분 첨가시료가 가장 컸고, 대조군이 가장 작았다. 생면의 인장길이는 전분을 첨가하지 않은 대조군이 가장 컸고, 인장 강도는 고구마전분을 넣은 것이 가장 컸다. 조리면의 인장길이 값은 생면보다 작았고, 인장강도는 조리면이 커졌다. 관능검사 결과 고구마전분을 첨가한 국수는 윤기, 구수한 맛, 쫄깃쫄깃한 정도 모두 가장 높은 것으로 평가되었으며, 기호도 검사결과, 고구마전분을 첨가한 국수는 향, 맛, 질감 및 전체적인 기호도의 항목에서 가장 선호되었다. 따라서 mixogram, 수분, 색도, texture, 인장강도 및 관능검사를 실시한 결과 밀가루에 고구마 전분을 첨가하여 제조한 국수의 품질이 가장 우수한 것으로 나타났다.

• 한국식품영양과학회지
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• 제36권9호
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• pp.1205-1210
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• 2007

당류 물질 미분당, 트레할로스, 프락토올리고당(95%), 이소말트, 헬스리고 및 갈락토올리고당(50%)을 쌀가루 기준 0, 1, 5 또는 10% 농도로 첨가하여 제조한 가래떡을 $5^{\circ}C$ 저장 0, 2, 6, 24 및 30시간 후 가래떡의 텍스처의 변화를 측정 분석하였고 관능검사를 실시하여 노화 정도를 비교하였다. 헬스리고 1% 첨가한 가래떡의 경우를 제외하고 부착성과 응집성은 다른 실험군들과 비슷한 경향을 보여 주었다. 경도는 대부분의 당류 물질에서 무첨가군에 비해 감소하는 경향으로 노화를 억제하는 효과를 보여 주었으나 프락토올리고당(95%) 5%의 경우 무첨가군과 큰 차이가 없었고 헬스리고 1% 첨가한 경우에는 24시간 경과 후 무첨가군에 비해 경도가 증가하였다. 당류 물질 첨가 가래떡의 $5^{\circ}C$ 저장 2시간과 24시간 후 관능적 묘사특징 분석에서는 부착성, 응집성, 쓴맛 및 떫은맛의 경우 실험군과 무첨가군을 비교하였을 때 큰 차이가 없었으나 경도는 실험군이 무첨가군에 비해 낮은 경향, 단맛은 높은 경향을 보여 주었다. 본 실험에 사용한 물질 중에서 프락토올리고당(95%) 5%와 헬스리고 1% 첨가를 제외한 다른 모든 당류 물질 실험군은 가래떡 제조 시 5% 또는 10% 수준으로 첨가하였을 때 노화억제 효과가 있는 것으로 확인되었다.