2017
DOI: 10.1016/j.foodchem.2017.02.142
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Down scaled Kjeldahl digestion and flow injection conductometric system for determination of protein content in some traditional northern Thai foods

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Cited by 12 publications
(4 citation statements)
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“…Soxhlet extraction method was used to measure the crude lipid. Determination of total protein using the Kjeldahl method is commonly and officially recognized as a standard method [ 52 ]. Total protein content was determined using an automatic Kjeldahl nitrogen analyzer (NKB3000, Shanghai Wanghai Environmental Technology Co., Ltd., Shanghai, China) after multiplying the total nitrogen content with an overall conversion factor of 6.25.…”
Section: Methodsmentioning
confidence: 99%
“…Soxhlet extraction method was used to measure the crude lipid. Determination of total protein using the Kjeldahl method is commonly and officially recognized as a standard method [ 52 ]. Total protein content was determined using an automatic Kjeldahl nitrogen analyzer (NKB3000, Shanghai Wanghai Environmental Technology Co., Ltd., Shanghai, China) after multiplying the total nitrogen content with an overall conversion factor of 6.25.…”
Section: Methodsmentioning
confidence: 99%
“…A number of methods have been developed for protein analysis in various food samples. Some engaged sample treatment in converting protein to a suitable species for the detection step, such as down scaled Kjeldahl digestion, 9 microwave assisted digestion, 10 ultrasound assisted digestion, 11 precipitation, 12,13 and extraction. 14,15 For the detection step, the conventional one ammonia/ammonium resulted from Kjeldahl digestion and was quantified by titration.…”
Section: Introductionmentioning
confidence: 99%
“… 14,15 For the detection step, the conventional one ammonia/ammonium resulted from Kjeldahl digestion and was quantified by titration. 16 Instead of conventional titration, some development involved detection steps such as flow injection with conductometric detection, 9,17 spectrophotometry with various reagents 10,11,13–15 and digital image-based colorimetry 12,18 (Table S1 † ).…”
Section: Introductionmentioning
confidence: 99%
“…O teor de proteínas foi determinado pelo método de Kjeldahl através das etapas de digestão, destilação e titulação (BRADSTREET, 1954), tradicionalmente empregado em análises composicionais (SÁEZ-PLAZA et al, 2013;WANG et al, 2016;YANU;JAKMUNEE, 2017). O método se baseia na quantificação total de nitrogênio e é estimado pelo fator de conversão de nitrogênio proteico da amostra.…”
Section: Proteínasunclassified