• Title/Summary/Keyword: different cooking methods

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Effect of waste cooking oil addition on ammonia emissions during the composting of dairy cattle manure

  • Kuroda, Kazutaka;Tanaka, Akihiro;Furuhashi, Kenichi;Fukuju, Naoki
    • Animal Bioscience
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    • v.35 no.7
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    • pp.1100-1108
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    • 2022
  • Objective: The objective of this study was to evaluate the effect of waste cooking oil (WCO) addition on ammonia (NH3) emissions during the composting of dairy cattle manure under two aeration conditions. Methods: The composting tests were conducted using the laboratory-scale composting apparatuses (14 L of inner volume). Three composting treatments (Control, WCO1.5, and WCO3, with WCO added at 0 wt%, 1.5 wt%, and 3 wt% of manure, respectively) were performed in two composting tests: aeration rate during composting was changed from 0.55 to 0.45 L/min in Test 1, and fixed at 0.3 L/min in Test 2, respectively. The NH3 emitted and nitrogen losses during the composting were analyzed, and the effect of the addition of WCO on NH3 emissions were evaluated. Results: Both tests indicated that the composting mixture temperature increased while the weight and water content decreased with increasing WCO content of the composting mixtures. On the other hand, the NH3 emissions and nitrogen loss trends observed during composting in Tests 1 and 2 were different from each other. In Test 1, NH3 emissions and nitrogen losses during composting increased with increasing WCO contents of the composting samples. Conversely, in Test 2, they decreased as the WCO contents of the samples increased. Conclusion: The WCO addition showed different effect on NH3 emissions during composting under two aeration conditions: the increase in WCO addition ratio increased the emissions under the higher aeration rate in Test 1, and it decreased the emissions under the lower aeration rate in Test 2. To obtain reduction of NH3 emissions by adding WCO with the addition ratio ≤3 wt% of the manure, aeration should be considered.

Influence of Cooking on Nutrient Composition in Provitamin A- Biofortified Rice (가열조리가 프로비타민 A 강화 쌀의 영양성분에 미치는 영향)

  • Lee, Young-Tack;Kim, Mi-Hyun;Im, Ji-Soon;Kim, Jae-Kwang;Ha, Sun-Hwa;Lee, Si-Myung;Kweon, Soon-Jong;Suh, Seok-Chul
    • Korean Journal of Food Science and Technology
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    • v.43 no.6
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    • pp.683-688
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    • 2011
  • This study was conducted to investigate the effects of different cooking methods on the nutrient composition of genetically modified (GM) provitamin A(PA)-biofortified rice. PA-biofortified rice was subjected to different cooking methods, namely boiling and a soaking, steaming and roasting process. The proximate components (starch, protein, lipid and ash) of raw PA-biofortified rice were similar to those found in the parental non-GM rice, and were not significantly affected by a conventional boiling treatment. When compared with raw rice, boiled PA-biofortified rice showed a similar nutrient composition, despite a slight reduction in a majority of its amino acid contents. However, the PA-biofortified rice that underwent the soaking/steaming/roasting process exhibited a significant reduction in a majority of its amino acids and mineral contents. This procedure also led to a significant reduction in carotenoid contents. The overall results of this study demonstrate that using a conventional boiling method for PA-biofortified rice retains nutrients better than a soaking/steaming/roasting method.

The A Literary Investigation on Mandu (Dumpling);Types and Cooking Methods of Mandu (Dumpling) During the Joseon Era (1400's${\sim}$1900's) (만두의 조리방법에 대한 문헌적 고찰;조선시대 만두의 종류와 조리방법에 대한 문헌적 고찰(1400년대${\sim}$1900년대까지))

  • Bok, Hye-Ja
    • Journal of the Korean Society of Food Culture
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    • v.23 no.2
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    • pp.273-292
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    • 2008
  • Among all the ingredients usedin mandu, the following types were used:, 13 types of grains were used (12.38%), 30 types of vegetables, fruits, bulbs,and nuts were used (28.57%), 32 types of marine products, birds, meats, fishes, and shellfishes were used (30.48%), 10 types of functional ingredients were used (9.52%) and. For spices, 20 types of spices were used (19.05%). 2. Cooking Methods offor Mandu. The mMandu eaten at in the early Joseon era had was primarily made ofusedbuckwheat that contained boiled tofu or egg uiijuk in the kneaded dough for the most part and while kneading with buckwheat, the tofu or egg uiijuk has been boiled down to knead the dough, and and starch powder, bean powder, or rice powder, etc were mixed to make the mandu coating. Buckwheat powder was mixed toadded to the flourwer or was used by itself, while meat, vegetables, tofu, and shiitake mushroom, etc were also addedincluded. From the 18th century, the host plant, or cabbage kimchi, were prepared and combined had been sliced to be used as filling together while red pepper powder was mixed combined withto spices or vinegar soy sauce to be used together. Also, Radishes had beenwere also used as filling, but shown as not being used fromafter the start of the 1900's. For the shape of mMandu, it was madeinto different shapes such as as triangle, rectangle, date plum, gwebul, half moon, or pomegranate shapes, and then shapes to be boiled in simmering water, baked, or cooked as soup in clear broth for soup., In the 17th to 18th century, boilingthen in a steamer gradually became a cooking style, assumed the style of boiling in a steamer in $17th{\sim}18th$ century while in the 16th century,the an essay ofn fermenting flour in ‘Food Dimibang’ in 16th century had indicated it was cooked as the style ofby steaming in a rice steamer. Also, Mandu may have also contained the following: the thin-cut and boiled fish was cut out thin to put into the filling and boiled down, made by putting in added pine nuts after making bbeef jerky or boiled- down meat, fish, or shellfish itself to extractsand mold mandu only the ingredients combined withto put on starch powder, and then boiled down and put on pine nut powder finally, after it or cooled it wasdown to be eaten by dipping in vinegar soy sauce. In conclusion, many different types of mandu were made during the Joseon era using a variety ofwhile the ones using such various ingredients. are also one type of mandu.

Effect of Cooking Methods on S-Allyl-L-Cysteine Content of Garlic (마늘의 조리방법에 따른 S-Allyl-L-Cysteine 함량 변화)

  • Lee, Sang Hoon;Jeong, Yun Sook;Hwang, Kyung-A;Song, Jin;Noh, Geon Min;Hwang, In Guk
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.8
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    • pp.1221-1226
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    • 2016
  • This study investigated changes in the S-allyl-L-cysteine (SAC) content of garlic using different cooking methods. Methods for determining SAC were validated by determining specificity, linearity, limit of detection (LOD), limit of quantification (LOQ), precision, and accuracy using an high-performance liquid chromatography-fluorescence detection system. Results showed high linearity in the calibration curve with a coefficient of correlation ($R^2$) of 0.9999. The LOD and LOQ values for SAC were 0.15 and $0.47{\mu}g/mL$, respectively. The relative standard deviations for intra- and inter-day precision of SAC were less than 5%. The recovery rate of SAC was in the range from 97.35% to 97.47%. The SAC content of raw garlic was 2.77 mg/g, and there was no significant difference in SAC content according to blanching and microwave treatment. However, SAC content upon boiling and autoclaving at $110^{\circ}C$ and $121^{\circ}C$ increased from 3.50~9.16 mg/g, 6.52~16.21 mg/g, and 14.15~50.24 mg/g with increasing cooking temperature and time, respectively.

Changes in β-Carotene, Vitamin E, and Folate Compositions and Retention Rates of Pepper and Paprika by Color and Cooking Method (고추와 파프리카의 색과 조리방법의 차이에 따른 베타카로틴, 비타민 E, 엽산의 함량과 잔존율)

  • Kim, Hyeon Young;Kim, Honggyun;Chun, Jiyeon;Chung, Heajung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.46 no.6
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    • pp.713-720
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    • 2017
  • ${\beta}-Carotene$, vitamin E, and folate contents according to color and species of Capsicum annuum were investigated. In addition, four C. annuum species were cooked by using different methods (boiling, pan-cooking, pan-frying, deep-frying, steaming, roasting, and microwaving), and retention rates of ${\beta}-Carotene$, vitamin E, and folate affected by color and species were evaluated. Weight loss was observed in all paprika and pepper species using all cooking methods. ${\beta}-Carotene$ and folate contents of C. annuum samples were significantly different by color, species, and cooking method (P<0.05), whereas vitamin E contents were not significantly affected by species. ${\beta}-Carotene$, vitamin E, and folate contents (mg/100 g) of raw C. annuum showed ranges of 95.4 (green pepper)~2,441.1 (red pepper), 0.7 (green paprika)~4.2 (red paprika), and 6.2 (green pepper)~148.7 (red pepper). As a result, the highest ${\beta}-Carotene$, vitamin E, and folate contents were detected in deep fried red pepper, roasted red pepper, and boiled red pepper, respectively, among the cooked samples. Retention rates of C. annuum varied by cooking method, resulting in ranges of 77.3% (boiled red pepper)~356.4% (roasted green pepper) for ${\beta}-Carotene$, 2.0% (microwaved red pepper)~789.3% (deep-fried green paprika) for vitamin E, and 20.9% (microwaved red pepper)~445.1% (steamed green pepper) for folate. Over 75% retention rates were observed for ${\beta}-Carotene$, vitamin E, and folate in all samples except for red pepper. However, in red pepper, vitamin E and folate retentions were remarkably lowered by deep frying and micro-waving, resulting in rates of 2.0~32.1%. This study provides information on effective cooking methods for vitamin retention in C. annuum depending on color and species.

Quality of Duck Breast and Leg Meat after Chilling Carcasses in Water at 0, 10 or $20^{\circ}C$

  • Ali, Md. Shawkat;Yang, Han-Sul;Jeong, Jin-Yeon;Moon, Sang-Hun;Hwang, Young-Hwa;Hwang, Young-Hwa;Park, Gu-Boo;Joo, Seon-Tea
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.12
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    • pp.1895-1900
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    • 2007
  • An experiment was carried out to investigate the effects of different chilling temperature on duck breast and leg meat quality. Duck carcasses were chilled for 30 minutes in water at either $0^{\circ}C$, $10^{\circ}C$ or $20^{\circ}C$ within 20 minutes of post mortem with 6 carcasses per group. Results showed no significant effects of chilling temperature on ultimate pH, protein solubility, sarcomere length and shear force value for duck breast or leg meat (p>0.05). Leg meat had higher ultimate pH, redness and shear force value, lower cooking loss, lightness, yellowness and protein solubility values than breast meat. The interaction of meat type and chilling temperature on cooking loss was significant (p<0.05). The effect of chilling temperature on cooking loss was more severe in leg meat than breast meat and $20^{\circ}C$ chilling resulted in significantly higher cooking losses than the other chilling temperatures. Results of this experiment revealed that duck carcass can be chilled at $10^{\circ}C$ without any harmful effect on meat quality including toughness of meat.

Lipid Composition and Palatability of Beef Meats Consumed in Korea (국내소비(國內消費) 쇠고기의 지방질(脂肪質) 성분과 기호성(嗜好性))

  • Kim, Young-Hyun;Lee, Su-Rae
    • Korean Journal of Food Science and Technology
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    • v.16 no.3
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    • pp.291-296
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    • 1984
  • The lipid composition of domestic and imported beef samples was analyzed and the lipid rancidity and flavor changes during their cooking and storage for 48 hours at $4^{\circ}C$ were investigated. The contents of total lipids and neutral lipids of raw, cooked and cooked-stored samples were higher in domestic beef than in imported beef. During cooking by simmering or roasting and storage for 48 hours at $4^{\circ}C$, the contents of total lipids and phospholipids showed a decreasing tendency in all samples. The results of sensory test for domestic and imported beef samples with two different cooking methods revealed significant differences between domestic and imported in both simmering and roasting. In a palatability test by hedonic scale, no significant difference was observed among roasted samples while a significant difference was observed among simmered samples between cooked domestic and cooked-stored imported beef. The increaase of TBA values in all cooked samples was mild right after cooking whereas it was rapid in cooked-stored samples. As TBA values increased, sensory scores decreased in all samples.

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Physicochemical Characteristics and Antioxidant Effects of Cooked Rice-Added Foxtail Millet according to Cooking Method (취반방법에 따른 조 첨가 밥의 이화학적 특성 및 항산화 효과)

  • Lee, Kyung Ha;Kim, Hyun-Joo;Kim, Mi-Jung;Ko, Jee Yeon;Lee, Seuk Ki;Park, Hye Young;Sim, Eun-Yeong;Cho, Dong-Hwa;Oh, Sea Kwan;Woo, Koan Sik
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.46 no.4
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    • pp.442-449
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    • 2017
  • This study was carried out to analyze the antioxidant components and activities of cooked mixed grain rice-added foxtail millet with different addition rates (5, 10, 15, and 20%) and cooking methods. The two foxtail millet varieties used in this study were non-waxy foxtail millet, 'Samdame', and waxy foxtail millet, 'Samdachal'. Cooked mixed grain rice-added foxtail millet was cooked by general and high pressure cooking methods with and without fermented alcohol. Except for breakdown viscosity, pasting characteristics of foxtail millet were reduced with increasing amounts of foxtail millet. Water-binding capacity and swelling power significantly decreased with increasing amounts of foxtail millet, whereas water solubility index significantly increased. Total polyphenol and flavonoid contents increased with increasing amounts of foxtail millet. DPPH and ABTS radical scavenging activities also increased with increasing amounts of foxtail millet. Moreover, foxtail millet cooked by general cooking method with fermented alcohol showed higher antioxidant effect compared to other cooking methods. In this study, antioxidant components and activities of cooked mixed grain rice-added foxtail millet with different addition rates and cooking methods can be used as basic data for manufacturing processed products.

Effect of Cultivars and Cooking Methods on the Trypsin Inhibitor Activities of Potatoes

  • Kim, Mi-Yeon;Son, Chan-Wok;Shim, Hyun-Jung;Lee, Jeung-Hee;Lee, Kun-Jong;Sok, Dai-Eun;Kim, Hyoung-Chin;Yoon, Won-Kee;Kim, Hwan-Mook;Kim, Mee-Ree
    • Food Science and Biotechnology
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    • v.17 no.1
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    • pp.161-165
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    • 2008
  • The trypsin inhibitor activities (TIA) of various potato cultivars were evaluated by measuring the inhibition of trypsin inhibitor activity using N-benzoyl-DL-arginine-p-nitroanilide (BAPNA) as substrate. The TIA values of 5 potato cultivars (1.99 to 2.88 mg/g) were significantly different among cultivars (p<0.05). When the TIA values of commercially processed potatoes were determined, no TIA was detected. During cooking, the $IT_{50}$ (time required to reach 50% inhibition of TIA) values were decreased as heating temperature and time increased. The ITso of moist heating was estimated to be 0.34 min at $100^{\circ}C$, whereas for deep-fat frying the $IT_{50}$ was 0.13 min at $180^{\circ}C$ and 5.28 min for oven baking at $100^{\circ}C$. The $IT_{50}$ value of microwave cooking was 0.194 min at medium heat, and which was similar to that of pressure cooking at $120^{\circ}C$ (0.185 min). Moreover, there was a negative relationship between temperature (${\geq}80^{\circ}C$) and $IT_{50}$ values ($R^2=0.99$, p<0.01). The TIA of potato was completely inactivated by moist heating at $100^{\circ}C$ within 5 min, whereas the pressure cooking at $120^{\circ}C$ and deep-fat frying at $180^{\circ}C$ within 60 and 30 sec, respectively. Based on our results, deep-fat frying is the most effective cooking method to reduce TIA in potatoes.

Changes in 4'-O-methylpyridoxine (ginkgotoxin) and antioxidant activity in ginkgo biloba seeds in different cooking conditions (조리조건에 따른 은행알의 4'-O-methylpyridoxine (ginkgotoxin) 함량 및 항산화 활성 변화)

  • Hong, Seo Jung;Jang, Jin A;Hwang, Hyun Jung;Cho, Mi Sook
    • Korean Journal of Food Science and Technology
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    • v.49 no.5
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    • pp.532-537
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    • 2017
  • The purpose of this study was to examine the best cooking condition to decrease 4'-O-methylpyridonxine (MPN, ginkgotoxin) and increase the antioxidative effect. We also examined the change in color of ginkgo biloba seeds after different cooking methods and times. MPN content was decreased with an increase in the cooking time. For the reduction of MPN content, the most efficient cooking method was pan-frying. In particular, MPN content was largely reduced after 8 min of pan-frying. 1,1-Diphenyl-2-picrylhydrazyl radical scavenging activity and total flavonoid content were increased after 11 min of pan-frying and this level was maintained until 14 min. The total phenolic compound content was maintained for up to 30 min by steaming and 11 min by pan-frying. Therefore, the optimum condition was established by pan-frying from 8 to 11 min.