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Zhu L, Liu F, Du Q, Shi T, Deng J, Li H, Cai F, Meng Z, Chen Q, Zhang J, Huang J. Variation Analysis of Starch Properties in Tartary Buckwheat and Construction of Near-Infrared Models for Rapid Non-Destructive Detection. PLANTS (BASEL, SWITZERLAND) 2024; 13:2155. [PMID: 39124273 PMCID: PMC11314173 DOI: 10.3390/plants13152155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 07/27/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024]
Abstract
Due to the requirements for quality testing and breeding Tartary buckwheat (Fagopyrum tartaricum Gaerth), it is necessary to find a method for the rapid detection of starch content in Tartary buckwheat. To obtain samples with a continuously distributed chemical value, stable Tartary buckwheat recombinant inbred lines were used. After scanning the near-infrared spectra of whole grains, we employed conventional methods to analyze the contents of Tartary buckwheat. The results showed that the contents of total starch, amylose, amylopectin, and resistant starch were 532.1-741.5 mg/g, 176.8-280.2 mg/g, 318.8-497.0 mg/g, and 45.1-105.2 mg/g, respectively. The prediction model for the different starch contents in Tartary buckwheat was established using near-infrared spectroscopy (NIRS) in combination with chemometrics. The Kennard-Stone algorithm was used to split the training set and the test set. Six different methods were used to preprocess the spectra in the wavenumber range of 4000-12,000 cm-1. The Competitive Adaptive Reweighted Sampling algorithm was then used to extract the characteristic spectra, and the prediction model was built using the partial least squares method. Through a comprehensive analysis of each parameter of the model, the best model for the prediction of each nutrient was determined. The correlation coefficient of calibration (Rc) and the correlation coefficient of prediction (Rp) of the best models for total starch and amylose were greater than 0.95, and the Rc and Rp of the best models for amylopectin and resistant starch were also greater than 0.93. The results showed that the NIRS-based prediction model fulfilled the requirement for the rapid determination of Tartary buckwheat starch, thus providing an effective technical approach for the rapid and non-destructive testing of starch content in the food science and agricultural industry.
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Affiliation(s)
- Liwei Zhu
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Fei Liu
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Qianxi Du
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Taoxiong Shi
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Jiao Deng
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Hongyou Li
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Fang Cai
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Ziye Meng
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Qingfu Chen
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
| | - Jieqiong Zhang
- Guizhou Provincial Agricultural Technology Extension Station, Guiyang 550001, China;
| | - Juan Huang
- Research Center of Buckwheat Industry Technology, College of Life Science, Guizhou Normal University, Guiyang 550025, China; (L.Z.); (F.L.); (Q.D.); (T.S.); (J.D.); (H.L.); (F.C.); (Z.M.); (Q.C.)
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Alamu EO, Nuwamanya E, Cornet D, Meghar K, Adesokan M, Tran T, Belalcazar J, Desfontaines L, Davrieux F. Near-infrared spectroscopy applications for high-throughput phenotyping for cassava and yam: A review. Int J Food Sci Technol 2021; 56:1491-1501. [PMID: 33776247 PMCID: PMC7984172 DOI: 10.1111/ijfs.14773] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 01/20/2023]
Abstract
The review aimed to identify the different high‐throughput phenotyping (HTP) techniques that used for quality evaluation in cassava and yam breeding programmes, and this has provided insights towards the development of metrics and their application in cassava and yam improvements. A systematic review of the published research articles involved the use of NIRS in analysing the quality traits of cassava and yam was carried out, and Scopus, Science Direct, Web of Sciences and Google Scholar were searched. The results of the review established that NIRS could be used in understanding the chemical constituents (carbohydrate, protein, vitamins, minerals, carotenoids, moisture, starch, etc.) for high‐throughput phenotyping. This study provides preliminary evidence of the application of NIRS as an efficient and affordable procedure for HTP. However, the feasibility of using mid‐infrared spectroscopy (MIRS) and hyperspectral imaging (HSI) in combination with the NIRS could be further studied for quality traits phenotyping.
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Affiliation(s)
- Emmanuel Oladeji Alamu
- International Institute of Tropical Agriculture (IITA) Southern Africa Hub PO Box 310142 Chelstone, Lusaka Zambia.,International Institute of Tropical Agriculture (IITA) PMB 5320, Oyo Road Ibadan Oyo State Nigeria
| | - Ephraim Nuwamanya
- National Crops Resources Research Institute NaCRRI P.O Box 7084 Kampala Uganda
| | - Denis Cornet
- CIRAD UMR AGAP Montpellier F-34398 France.,Univ. Montpellier CIRAD INRA Montpellier SupAgro France
| | - Karima Meghar
- UMR Qualisud University of Montpellier CIRAD Montpellier SupAgro University of Avignon University of La Réunion 73 rue JF Breton Montpellier 34398 France
| | - Michael Adesokan
- International Institute of Tropical Agriculture (IITA) PMB 5320, Oyo Road Ibadan Oyo State Nigeria
| | - Thierry Tran
- UMR Qualisud University of Montpellier CIRAD Montpellier SupAgro University of Avignon University of La Réunion 73 rue JF Breton Montpellier 34398 France.,The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT) CGIAR Research Program on Roots Tubers and Bananas (RTB) Apartado Aéreo 6713 Cali Colombia
| | - John Belalcazar
- The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT) CGIAR Research Program on Roots Tubers and Bananas (RTB) Apartado Aéreo 6713 Cali Colombia
| | - Lucienne Desfontaines
- Centre de recherche Antilles-Guyane INRAe UR 1321 ASTRO Agrosystèmes tropicaux Petit-Bourg France
| | - Fabrice Davrieux
- UMR Qualisud University of Montpellier CIRAD Montpellier SupAgro University of Avignon University of La Réunion 73 rue JF Breton Montpellier 34398 France
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3
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Core epitope analysis of 16 kDa allergen from tartary buckwheat. Food Chem 2020; 346:128953. [PMID: 33412487 DOI: 10.1016/j.foodchem.2020.128953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 12/14/2020] [Accepted: 12/22/2020] [Indexed: 11/21/2022]
Abstract
Tartary buckwheat is widely accepted as its nutritionalvalue. Some allergic reactions hinder its utilization. This research focused on evaluating the core epitope of 16 kDa allergen (Fag t 2) in tartary buckwheat. Six B- and seven T cell epitopes of Fag t 2 were predicted, and six B cell epitope-mutants were expressed in Pichia pastoris. Bioinformatics analysis and SDS-PAGE demonstrated that the molecular weight, isoelectric point and spatial structures of six mutant allergens were similar with Fag t 2, with the same signal peptide sequences and α-amylase inhibitor domain. There was no significant change in mutants' spatial conformation confirmed by Circular Dichroism. The position K132N and peptides at 108-117 and 132-141 were the core B- and T cell epitopes of Fag t 2 confirmed by competitive inhibition ELISA and dot blot. This result was of great significance on the study of allergen epitopes in prevention and treatment of hypersensitivity.
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Szabłowska E, Tańska M. Acorn flour properties depending on the production method and laboratory baking test results: A review. Compr Rev Food Sci Food Saf 2020; 20:980-1008. [PMID: 33325090 DOI: 10.1111/1541-4337.12683] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/31/2020] [Accepted: 11/18/2020] [Indexed: 11/29/2022]
Abstract
Acorns, the fruit of the oak, have long been an important source of food in different cultures around the world. Despite their long culinary tradition, they have become under-appreciated. Due to their high starch content, acorns are mainly used for flour production, and acorn flour is considered as a replacement for cereal flour in a wide range of applications in food production. This study reviewed the published literature concerning acorn flour production and composition as well as the possibility of using acorn flour in the most popular flour-based products such as bread, cake, and cookies. The study also presents the advantages resulting from acorn flour incorporation to the human diet and acorn flour influence on the quality of bread and pastry products. This review found that acorn flour is characterized by a lack of gluten proteins and a high content of fiber and minerals as well as the presence of polyphenols with antioxidant properties. However, negative impact of its larger amount on the dough rheological features and product physical properties has been emphasized in many studies. The researchers recommend the incorporation of acorn flour up to a level of 15% in formulating composite flour for bread production. However, the literature data indicates that acorn flour substitution for pastry production depends on the product type and ranges from 10 to even 60%. It is also highlighted that the application of acorn flour into gluten-free products is particularly favorable from a nutritional point of view.
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Affiliation(s)
- Emilia Szabłowska
- Department of Food Technology and Human Nutrition, Faculty of Computer Science and Food Science, Łomża State University of Applied Sciences, Łomża, Poland
| | - Małgorzata Tańska
- Department of Food Plant Chemistry and Processing, Faculty of Food Sciences, University of Warmia and Mazury, Olsztyn, Poland
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Zhang H, Wang X, Wang F, Zhao F, Li X, Fan G, Zhao Z, Guo P. Rapid prediction of Apparent Amylose, total starch, and crude protein by near‐infrared reflectance spectroscopy for foxtail millet (
Setaria italica
). Cereal Chem 2020. [DOI: 10.1002/cche.10281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Haiying Zhang
- Zhangjiakou Academy of Agricultural Science Zhangjiakou China
- Shanxi Agricultural University Taigu China
| | - Xiaoming Wang
- Zhangjiakou Academy of Agricultural Science Zhangjiakou China
| | - Feng Wang
- Zhangjiakou Academy of Agricultural Science Zhangjiakou China
| | - Fang Zhao
- Zhangjiakou Academy of Agricultural Science Zhangjiakou China
| | - Xinru Li
- Zhangjiakou Academy of Agricultural Science Zhangjiakou China
| | - Guangyu Fan
- Zhangjiakou Academy of Agricultural Science Zhangjiakou China
| | - Zhihai Zhao
- Zhangjiakou Academy of Agricultural Science Zhangjiakou China
| | - Pingyi Guo
- Shanxi Agricultural University Taigu China
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6
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Phetpan K, Udompetaikul V, Sirisomboon P. In-line near infrared spectroscopy for the prediction of moisture content in the tapioca starch drying process. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.01.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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7
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Basati Z, Jamshidi B, Rasekh M, Abbaspour-Gilandeh Y. Detection of sunn pest-damaged wheat samples using visible/near-infrared spectroscopy based on pattern recognition. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 203:308-314. [PMID: 29879646 DOI: 10.1016/j.saa.2018.05.123] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 05/16/2018] [Accepted: 05/29/2018] [Indexed: 05/23/2023]
Abstract
The presence of sunn pest-damaged grains in wheat mass reduces the quality of flour and bread produced from it. Therefore, it is essential to assess the quality of the samples in collecting and storage centers of wheat and flour mills. In this research, the capability of visible/near-infrared (Vis/NIR) spectroscopy combined with pattern recognition methods was investigated for discrimination of wheat samples with different percentages of sunn pest-damaged. To this end, various samples belonging to five classes (healthy and 5%, 10%, 15% and 20% unhealthy) were analyzed using Vis/NIR spectroscopy (wavelength range of 350-1000 nm) based on both supervised and unsupervised pattern recognition methods. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) as the unsupervised techniques and soft independent modeling of class analogies (SIMCA) and partial least squares-discriminant analysis (PLS-DA) as supervised methods were used. The results showed that Vis/NIR spectra of healthy samples were correctly clustered using both PCA and HCA. Due to the high overlapping between the four unhealthy classes (5%, 10%, 15% and 20%), it was not possible to discriminate all the unhealthy samples in individual classes. However, when considering only the two main categories of healthy and unhealthy, an acceptable degree of separation between the classes can be obtained after classification with supervised pattern recognition methods of SIMCA and PLS-DA. SIMCA based on PCA modeling correctly classified samples in two classes of healthy and unhealthy with classification accuracy of 100%. Moreover, the power of the wavelengths of 839 nm, 918 nm and 995 nm were more than other wavelengths to discriminate two classes of healthy and unhealthy. It was also concluded that PLS-DA provides excellent classification results of healthy and unhealthy samples (R2 = 0.973 and RMSECV = 0.057). Therefore, Vis/NIR spectroscopy based on pattern recognition techniques can be useful for rapid distinguishing the healthy wheat samples from those damaged by sunn pest in the maintenance and processing centers.
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Affiliation(s)
- Zahra Basati
- Department of Bio-systems Engineering, Faculty of Agricultural and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Bahareh Jamshidi
- Agricultural Engineering Research Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
| | - Mansour Rasekh
- Department of Bio-systems Engineering, Faculty of Agricultural and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Yousef Abbaspour-Gilandeh
- Department of Bio-systems Engineering, Faculty of Agricultural and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
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8
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Zeng L, Chen C. Simultaneous estimation of amylose, resistant, and digestible starch in pea flour by visible and near-infrared reflectance spectroscopy. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2018. [DOI: 10.1080/10942912.2018.1485027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Lingjie Zeng
- College of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Eastern Agricultural Research Center, Montana State University, Sidney, MT, USA
| | - Chengci Chen
- Eastern Agricultural Research Center, Montana State University, Sidney, MT, USA
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9
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Differences in physicochemical properties and in vitro digestibility between tartary buckwheat flour and starch modified by heat-moisture treatment. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.08.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Kokalj Ladan M, Straus J, Tavčar Benković E, Kreft S. FT-IR-based method for rutin, quercetin and quercitrin quantification in different buckwheat (Fagopyrum) species. Sci Rep 2017; 7:7226. [PMID: 28775318 PMCID: PMC5543106 DOI: 10.1038/s41598-017-07665-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 06/28/2017] [Indexed: 12/21/2022] Open
Abstract
The present study explores an alternative method for antioxidants determination in buckwheat (Fagopyrum) samples. Buckwheat contains different amounts of the antioxidants rutin, quercetin and quercitrin in different plant parts. Buckwheat seeds are most commonly used as food; however, preparations from the herb can also be used as a rich source of rutin. Infrared spectroscopy was used for individual and sum quantification of rutin, quercetin and quercitrin in whole and ground flowers and leaves of seven different buckwheat species. Correlation coefficients R of calibration and independent validation set for rutin, quercetin and quercitrin were 1.00 and 0.98, 0.94 and 0.99, 0.99 and 0.95, respectively. Some of the developed models had accuracy comparable to the reference HPLC method. Additionally many different parameters that give an important insight into the FTIR technique are discussed (different plant parts, whole and ground untreated samples, 3 different resolutions, 7 spectra pre-treatments, using individual or averaged spectra, reducing spectral data input, considering additional non-spectral data). The implemented technique used no sample preparation, is non-destructive and uses very little amounts of sample. Result show that infrared spectroscopy can be a fast and environmentally friendly alternative technique for routine analysis of main flavonoids in aerial parts of buckwheat.
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Affiliation(s)
- Meta Kokalj Ladan
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia.
| | - Janka Straus
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Eva Tavčar Benković
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Samo Kreft
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
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11
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Chen J, Zhu S, Zhao G. Rapid determination of total protein and wet gluten in commercial wheat flour using siSVR-NIR. Food Chem 2017; 221:1939-1946. [DOI: 10.1016/j.foodchem.2016.11.155] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 11/24/2016] [Accepted: 11/29/2016] [Indexed: 10/20/2022]
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12
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13
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Blackburn K, N'jai AU, Dearman RJ, Kimber I, Gerberick GF. Respiratory allergenic potential of plant-derived proteins: Understanding the relationship between exposure and potency for risk assessments. Crit Rev Toxicol 2015; 45:799-811. [DOI: 10.3109/10408444.2015.1067876] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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14
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Cozzolino D, Degner S, Eglinton J. A Review on the Role of Vibrational Spectroscopy as An Analytical Method to Measure Starch Biochemical and Biophysical Properties in Cereals and Starchy Foods. Foods 2014; 3:605-621. [PMID: 28234340 PMCID: PMC5302241 DOI: 10.3390/foods3040605] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 10/22/2014] [Accepted: 11/14/2014] [Indexed: 11/16/2022] Open
Abstract
Starch is the major component of cereal grains and starchy foods, and changes in its biophysical and biochemical properties (e.g., amylose, amylopectin, pasting, gelatinization, viscosity) will have a direct effect on its end use properties (e.g., bread, malt, polymers). The use of rapid and non-destructive methods to study and monitor starch properties, such as gelatinization, retrogradation, water absorption in cereals and starchy foods, is of great interest in order to improve and assess their quality. In recent years, near infrared reflectance (NIR) and mid infrared (MIR) spectroscopy have been explored to predict several quality parameters, such as those generated by instrumental methods commonly used in routine analysis like the rapid visco analyser (RVA) or viscometers. In this review, applications of both NIR and MIR spectroscopy to measure and monitor starch biochemical (amylose, amylopectin, starch) and biophysical properties (e.g., pasting properties) will be presented and discussed.
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Affiliation(s)
- D Cozzolino
- School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB 1 Glen Osmond, SA, 5064, Australia.
| | - S Degner
- School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB 1 Glen Osmond, SA, 5064, Australia.
| | - J Eglinton
- School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB 1 Glen Osmond, SA, 5064, Australia.
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15
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YAO Y, CHENG XZ, REN GX. Application of Near-Infrared Reflectance Spectroscopy to the Evaluation of D-chiro-lnositol, Vitexin, and Isovitexin Contents in Mung Bean. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/s1671-2927(11)60200-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Li P, Cui X, Li Y, Wang Z. Epitope mapping and identification on a 3D model built for the tartary buckwheat allergic protein TBb. Acta Biochim Biophys Sin (Shanghai) 2011; 43:441-7. [PMID: 21571740 DOI: 10.1093/abbs/gmr036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Allergic protein TBb, a major allergen in tartary buckwheat, was divided into four epitope-containing fragments and was named F1, F2, F3, and F4, respectively. Results of immunological assays revealed that F2 had the strongest IgE-binding activity to patient's sera, which indicated that it might contain the linear IgE-binding epitope of TBb. According to the results of sequence analysis and molecular modeling of tartary buckwheat allergen, three mutants of F2 gene (R139A, R141A, and D144A) were reconstructed using site-directed mutagenesis, and each mutant was expressed in Escherichia coli BL21 (DE3). Following purification by Ni(2+) affinity chromatography, enzyme-linked immunosorbent assay and dot blot were performed for wild-type F2 and its mutants using sera from buckwheat-allergic patients and a negative control (non-allergic patient). Results showed that mutants R139A and D144A had weaker IgE-binding activity to patient's sera than wild-type F2, implying that Arg(139) and Asp(144) might be involved in the allergic activity of TBb. However, R141A had the weakest IgE-binding activity, suggesting that Arg(141) may be the critical amino acid of TBb. This is the first report on the epitope mapping and identification of TBb. Our findings will contribute to the production of TBb hypoallergens and to allergen-specific immunotherapy for tartary buckwheat allergy.
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Affiliation(s)
- Ping Li
- Key Laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, China
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18
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Fu FF, Ye R, Xu SP, Xue HW. Studies on rice seed quality through analysis of a large-scale T-DNA insertion population. Cell Res 2009; 19:380-91. [PMID: 19223856 DOI: 10.1038/cr.2009.15] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
A rice (Oryza sativa) T-DNA insertion population, which included more than 63 000 independent transgenic lines and 8 840 identified flanking sequence tags (FSTs) that were mapped onto the rice genome, was developed to systemically study the rice seed quality control. Genome-wide analysis of the FST distribution showed that T-DNA insertions were positively correlated with expressed genes, but negatively with transposable elements and small RNAs. In addition, the recovered T-DNAs were preferentially located at the untranslated region of the expressed genes. More than 11 000 putative homozygous lines were obtained through multi-generations of planting and resistance screening, and measurement of seed quality of around half of them, including the contents of starch, amylose, protein and fat, with a nondestructive near-infrared spectroscopy method, identified 551 mutants with unique or multiple altered parameters of seed quality. Analysis of the corresponding FSTs showed that genes participating in diverse functions, including metabolic processes and transcriptional regulation, were involved, indicating that seed quality is regulated by a complex network.
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Affiliation(s)
- Fang-Fang Fu
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Science (SIBS), Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China
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Tomotake H, Yamamoto N, Kitabayashi H, Kawakami A, Kayashita J, Ohinata H, Karasawa H, Kato N. Preparation of Tartary Buckwheat Protein Product and Its Improving Effect on Cholesterol Metabolism in Rats and Mice Fed Cholesterol-Enriched Diet. J Food Sci 2007; 72:S528-33. [DOI: 10.1111/j.1750-3841.2007.00474.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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Skrabanja V, Kreft I, Golob T, Modic M, Ikeda S, Ikeda K, Kreft S, Bonafaccia G, Knapp M, Kosmelj K. Nutrient Content in Buckwheat Milling Fractions. Cereal Chem 2004. [DOI: 10.1094/cchem.2004.81.2.172] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Vida Skrabanja
- Biotechnical Faculty, University of Ljubljana, P.O. Box 2995, SI-1001 Ljubljana, Slovenia
| | - Ivan Kreft
- Biotechnical Faculty, University of Ljubljana, P.O. Box 2995, SI-1001 Ljubljana, Slovenia
- Corresponding author. Phone: +386 1 423 1161. Fax: +386 1 517 1488. E-mail:
| | - Terezija Golob
- Biotechnical Faculty, University of Ljubljana, P.O. Box 2995, SI-1001 Ljubljana, Slovenia
| | - Mateja Modic
- Zito, d.d., Smartinska c. 154, SI-1529 Ljubljana, Slovenia
| | - Sayoko Ikeda
- Faculty of Nutrition, Kobe Gakuin University, Nishi-ku, Kobe 651-2180, Japan
| | - Kiyokazu Ikeda
- Faculty of Nutrition, Kobe Gakuin University, Nishi-ku, Kobe 651-2180, Japan
| | - Samo Kreft
- Faculty of Pharmacy, University of Ljubljana, Askerceva 7, SI-1000 Ljubljana, Slovenia
| | | | - Martina Knapp
- Biotechnical Faculty, University of Ljubljana, P.O. Box 2995, SI-1001 Ljubljana, Slovenia
| | - Katarina Kosmelj
- Biotechnical Faculty, University of Ljubljana, P.O. Box 2995, SI-1001 Ljubljana, Slovenia
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Ikeda K. Buckwheat: composition, chemistry, and processing. ADVANCES IN FOOD AND NUTRITION RESEARCH 2002; 44:395-434. [PMID: 11885141 DOI: 10.1016/s1043-4526(02)44008-9] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Kiyokazu Ikeda
- Faculty of Nutrition, Kobe Gakuin University, Nishi-ku, Kobe 651-2180, Japan
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