• The Journal of Asian Finance, Economics and Business
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• 제9권8호
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• pp.157-167
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• 2022

The global laundry detergents market in 2021 was valued at nearly $121 billion, with consumers being reported as heightening their search for hygienic products capable of fighting viruses. Therefore, the researchers undertook a study to determine how product innovation (PI), product quality (PQ), and product attitude (PA) effects Thai consumers' satisfaction (CS) with their purchase of laundry detergent and fabric softener. After the questionnaire's validity and reliability confirmation, the authors used multi-stage random sampling by region and province in January and February 2022 to collect 520 questionnaires. LISREL 9.10 was used in the CFA and SEM analysis of the six hypotheses, which were determined to be supported. The results showed that all three causal variables positively influenced CS, with a total effect (TE) R² value = 87%. Also, latent variable total effect (TE) values showed that PI was strongest (0.93), then PQ (0.56), and finally, PA (0.54). Therefore, consumer satisfaction is essential in a firm's ongoing development and sustainability in a highly competitive, globalized world. Organizations must develop competitive strategies that adjust to consumer needs. Management must monitor online and social media sources where product reviews are given and adjust their strategies accordingly.

• Asian-Australasian Journal of Animal Sciences
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• 제19권7호
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• pp.978-983
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• 2006

Forages from grazing lands comprise conventional feed resources for ruminants in the tropical region. A study was conducted to assess fodder productivity and nutritive potential of deferred forages of six silvopastoral traditional fodder banks in central northwest Tanzania, traditionally known as Ngitiri. The grazing lands were dominated by low quality increaser grass species: Eragrostis spp., Aristida spp., Urochloa spp., Rottboellia exaltata, Cenchrus spp., Cynodon spp. and Chloris spp., and forbs species. The grazing lands had low vegetative basal cover that varied (p<0.05) from 34.7 to 75%, and low forage biomass productivity that varied (p<0.05) from 0.76 to 3.69 tones (t) dry matter (DM)/ha. The forages contained low crude protein (CP) that varied (p<0.05) from 16 to 27 g/kg DM; and had high fibre contents, which varied (p<0.05) from 702-725, 497-573 and 119-225 g/kg DM for neutral detergent fibre (NDF), acid detergent fibre (ADF) and acid detergent lignin (ADL), respectively. The forages were poorly degraded in sacco, and showed low DM degradability (DMD) characteristics of 74, 473 and 576 g/kg DM for DM washing losses (a), slowly degradable feed fraction (b) and potential degradability, (a+b), respectively; and low DMD at 48 h incubation, which varied from 317-345 g/kg DM, and contained low metabolizable energy (ME), (4.2-4.36 MJ/kg DM). The herbage forages would not meet protein and energy requirements for maintenance and production, which could be reflected through low animal productivity. Further work is needed to assess animal productivity (growth, milk, draft force) from conserved forages in traditional fodder banks in the dry season.

• Journal of Microbiology and Biotechnology
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• 제10권3호
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• pp.349-354
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• 2000

Abstract A facultative alkalophilic gram-negative Vibrio metschnikovii strain RH530, isolated from the wastewater, produced several alkaline proteases (VAP) including six alkaline serine proteases and a metalloprotease. From this strain, high yielding YAP mutants were isolated by NTG treatment. The isolated mutant KS1 showed nine times more activity than the wild-type after optimization of the culture media. The production was regulated by catabolite repression when glucose was added to the medium. The effects of several organic nitrogen sources on the production of the YAP were investigated to avoid catabolite repression. The combination of 4% wheat gluten meal (WGM), 1.5% cotton seed flour (eSF), and 5% soybean meal (SBM) resulted in the best production when supplemented with 1% NaCl. The YAP showed a resistance to surfactants such as $sodium-{\alpha}-olefin$ sulfonate (AOS), polyoxy ethylene oxide (POE), and sodium dodecyl sulfate (SDS), yet not to linear alkylbenzene sulfonate (LAS). However, the activity of the YAP was restored completely when incubated with LAS in the presence of POE or $Na_2SO_4$. The YAP was stable in a liquid laundry detergent containing 6.6% SLES (sodium lauryl ether sulfate), 6.6% LAS, 19.8% POE, and stabilizing agents for more than two weeks at $40^{\circ}C$, but the stability was sharply decreased even after 1 day when incubated at $60^{\circ}C$. A washing performance test with the YAP exhibited it to be a good washing power by showing 51 % and 60% activity at $25^{\circ}C{\;}and{\;}40^{\circ}C$, respectively, thereby indicating that the YAP also has a good detergency at a low temperature. All the results suggest that the YAP produced from the mutant strain KSI has suitable properties for use in laundry detergents.rgents.

• Applied Biological Chemistry
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• 제48권4호
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• pp.388-393
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• 2005

치커리, 청경채, 방울토마토, 포도 등 과 채류 4종에 Chlorpyrifos, Chlorothalonil, Endosulfan, EPN, Fenitrothion, Procymidone 등 농약 6종을 인위적으로 부착시켜 잔류농약 제거율을 조사한 결과, 수돗물 세척에서 전체 평균 제거율은 68.3%, 수돗물을 이용한 초음파 2분 및 5분간 세척에서 73.7, 82.5%로 나타났고, 4종의 첨가제액를 이용한 세척에서는 0.5% 세제액(82.9%)>5% 식초액(76.9%)>5% 소금물(75.8%)>5% 밀가루액(75.7%) 순으로 나타나 0.5% 세제액이 가장 높은 제거율을 보였으며, 나머지 3종류의 첨가제는 비슷한 제거율을 나타내었다. 첨가제액를 이용한 초음파 세척에서는 첨가제액 세척보다 $1{\sim}3%$ 정도 높게 나타났으며, 0.5% 세제액으로 5분간 초음파 세척시 89.3%로 수돗물 세척보다는 20%정도 높은 제거율을 보였다. 한편 전체 결과에서 최고 및 최저 제거율은 방울토마토중 Chlorthalonil 이 99.0%(0.5%세제 초음파 5분간 세척), 포도 중 EPN이 47.8%(물세척)로 나타났고, 농약별로는 Chlorthalonil(90.0%)>Procymidone(81.3%)>Chlorpyrifos(76.6%)>Endosulfan(75.7%)>Fenitrothion(75.5%)>EPN(73.8%) 순으로 높은 제거율을 보였다.

• 한국수산과학회지
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• 제12권4호
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• pp.261-266
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• 1979

부산 근교에서 생산되는 고등 소채류에 대한 세균오염상태를 파악하고 세척, blanching등 처리방법에 따른 세균 제거율과 IMViC system에 의한 대장균군 동정시험 결과를 요약하면 다음과 같다. 1. 엽채류는 과채류에 비하여 분편소대장균의 오염도가 높았다. 2. 수도수로 세척했을 때 생균수 제거율에 있어서는 약 $70\%$, 엽채류에 있어서는 약 $20\%$ 있다. 3. 엽채류를 시판 서첵제로 세척했을 때 생균수 제거율을 약 $80\%$ 수도수로 세척했을때보다 $3\~4$배의 세척 효과가 없었다. 4. 2배의 끊는물에서 1분간 blanching했을 때 생균수 잔재율은 $0.1\%$ 이하있다. 5. 대장균군의 조성은 Eschrichia colr group $18\%$ Citrobacter freundii group $22\%$, Klebsiella aerogenes group $60\%$였으며 이중 Escherichia coli type I 이 $16\%$를 차지하였다. 6. 대장균군 확정시험 배지인 BGLB의 신선성은 약 $80\%$ 였다.

• 한국의류학회지
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• 제22권2호
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• pp.224-232
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• 1998

Protease is mixtured in detergent to remove protein-soil easily. It must not act on the any fiber except protein-soil during laundry. So the purpose of this study is to investigate how protease is affect the fiber, particulary the protein-fiber. For this purpose, silk, wool and nylon are selected as samples, and the extent of the damage was estimated as tensile strength and surface condition (that is fibrillation). The results are as follows. The tensile strength of fiber treated with protease were lowered at enzyme concentration 0.1%, temperature 4$0^{\circ}C$ , and, as washing time was longer, it was lowered more. And it was showed that the surface of fibers were fiblliated by protease during washing. From this results, it was found that protease damaged protein-fiber. The damage of silk was the largest of all, and wool was less damaged than silk, because it has the scale (cuticle) on the outside. Additionary, an influence of surfactant on damage of fiber was little about three fibers, but, the fibers were damaged more by the binary nonionic-surfactant and protease mixture than by protease only.

• 한국의류학회지
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• 제45권3호
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• pp.525-545
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• 2021

The purpose of this study was to assess the sustainability of laundry practices among Korean households in comparison with European households. A total of 329 responses were collected through an online survey and analyzed using SPSS. Detergent dosing, use of fabric softener, prewashing, rinsing, washing programs, and washing temperatures of Korean households were not optimal for sustainability. Only 11.2% of respondents followed dosage instructions while the majority based on load size. Use of fabric enhancer, prewashing, and rinsing were frequent. Cotton 40℃ was the most frequently used program (81.5%) while eco and cold wash programs were among the least (1.5%). In terms of laundry sorting, load size, drying, and ironing, more sustainable actions were reported. Laundry was often sorted by color, machines were commonly filled, and clothes tended to be air-dried and not excessively ironed. Gender was the primary socio-demographic factor denoting sustainable habits, with males being more attentive to instructions and care labels than females. European households, however, were more sustainable in all areas except for frequent ironing, and education level and employment status were significant factors affecting sustainable practices.

• 대한화학회지
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• 제65권6호
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• pp.433-440
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• 2021

계면활성제는 하나의 분자에 친수성 작용기와 소수성 부분이 동시에 존재하는 유기화합물로 수용액 상태에서 전하에 따라 비이온, 음이온, 양이온, 양쪽성 계면활성제로 분류된다. 1종 세척제(야채 및 과일 세척제)를 사용하여 야채나 과일을 세척할 때 극미량이 잔류하여 섭취를 통해 인체에 노출될 가능성이 있는 것으로 알려져 있다. 본 연구는 세척제를 사용한 야채, 과일의 세척 후 세척제 잔류량 분석을 위해 LC-MS/MS를 이용한 계면활성제 5종 동시분석법을 확립하였다. 이동상으로는 50 mM 암모늄 포메이트와 0.1% 폼산이 함유된 증류수와 아세토니트릴을 사용하였으며, XBridge BEH C8 컬럼을 이용하여 경사용매조성법으로 분석하였다. 확립된 분석법의 정확도는 83.9~112.1% 이었고, 정밀도는 20% 이하로 정밀한 값을 보였다. 검출한계는 7.0(SLS)~29.0(SLES-N3) ㎍/L이었고, 검량선 회귀식의 상관계수(r²)은 0.99 이상으로 우수한 직선성을 보여주어 야채 및 과일에 잔류하는 미량의 계면활성제 성분의 분석에 적합한 것으로 판단된다.

• 한국환경농학회지
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• 제23권3호
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• pp.142-147
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• 2004

Tebuconazole의 안전성 평가를 위한 기초자료를 얻기 위하여 tebuconazole의 처리시기, 처리횟수, 봉지 씌우기(괘대) 및 세척방법에 따른 잔류성을 조사하였다. 수확 전 처리횟수가 3회${\sim}$5회 처리로 증가함에 따라 tebuconazole의 잔류량이 높게 나타났으며, 처리횟수가 동일한 조건에서는 최종 처리 후 경과일수가 길수록 잔류량이 적게 나타났다. 처리횟수 및 최종 처리 후 경과일수가 동일하더라도 최초 약제처리 시기에 따라 잔류량의 차이가 나타나 기상 조건 및 과실의 생육상태에 따른 잔류량 변동 가능성이 시사되었다. 과실 1개당 무게가 $2.5{\sim}7.5\;g$의 범위에서 과실 개체의 크기가 작을수록 높은 잔류량을 보였으며, 잔류성분의 대부분이 과피에 분포하였다. 괘대 과실의 과피에서 무괘대 과실의 과피에 비하여 매우 낮은 잔류량을 보였다. 과육 중의 잔류량은 괘대 포도에서는 검출한계 이하로, 무괘대 포도에는 0.05 mg/kg 수준으로 분포하였다. 세척 전의 잔류량이 0.86 mg/kg 수준인 포도 시료에서는 물에 1분간 침지하고 흐르는 물에 $1{\sim}2$회 세척 시에 잔류량의 약 $25{\sim}67%$가 제거되었으며, 침지처리 후 3회 세척한 시료에서는 검출한계 이하의 잔류량을 보였다. 세제용액에 침지하고 흐르는 물에 세척한 경우에는 물 침지에 비하여 높은 제거효과가 나타났으며, 세척 전 포도 중의 잔류량이 낮을수록 제거효과가 높게 나타났다.

• 생명과학회지
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• 제22권12호
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• pp.1665-1671
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• 2012

본 연구는 양파껍질로부터 건강기능성식품 기능성원료로서의 양파껍질추출물의 표준화공정을 설정하고자 하였으며, 제조과정 중 지표물질의 추출효율 증대 및 잔류농약 안정성 확보를 위해 여러 세척공정을 통한 quercetin 함량 및 잔류농약 잔존율을 분석하였다. 양파껍질(A)을 1차 1종세척제(이하 세척제) 수세후 건조한 처리구(B), 2차 세척제 처리구(C), 초음파+세척제 처리구(D), 과산화수소+세척제 처리구(E) 및 데치기+세척제 처리구(F)로 처리한 다음 주정추출후 농축 및 진공동결건조하여 양파껍질추출분말을 제조하였다. 양파껍질추출물의 수율 및 지표물질인 quercetin의 수율을 고려하면 과산화수소처리+세척제 처리구(E)가 B처리구에 비해 각각 89.04% 및 96.84%로 추출효율이 가장 높게 나타났다. 모든 시료에서 총 177종의 농약성분 중 cyhalothirn, fluquinconazole 및 procymidone, 3종만이 검출되었는데, cyhalothirn (생양파 허용기준; 0.5 mg/kg), fluquinconazole (0.2 mg/kg)은 각각 0.37-0.68 mg/kg 및 0.35-3.28 mg/kg으로 농축도(27-60배)를 고려하면 허용기준에 안정하였으나 procymidone은 함량이 128.01~133.67 mg/kg으로 높았다. 따라서 양파껍질추출물의 표준화공정을 위해서는 추가적인 물리적 전처리 공정이 필요한 것으로 사료되었다.