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1
artículo
The antioxidant capacity in fruit extracts of (Muehlembeckia volcanica) has been characterized, quantified and determined for which the anthocyanin pigments were extracted with 0.01% acidified methanol HCl, filtered, concentrated, centrifuged and fed to a known volume for later analysis. In the extract the content of total anthocyanin’s (CAT) was evaluated by the differential pH method, total polyphenols (PFT) by the Folin-Ciocalteu method and its antioxidant capacity by the TEAC DPPH Method. Extracts characterized by UV-Vis spectrophotometry have maximum absorbance values ​​at 520 nm that correspond to established anthocyanin structures, in the same way by FTIR-ATR spectroscopy strong absorption signals are observed at different vibration frequency values which correspond to anthocyanin functional groups. The HPLC chromatograms of the extract belong to anthocyanin’s delfinidine ...
2
artículo
 The Natural dye demand is growing worldwide. This research is about the extracts of the fruits of (mio-mio) Coriaria ruscifolia L., from which little information is available, but we found in them anthocyanic and polyphenolic compounds   which are great interest as bioactive compounds because of their antioxidant capacity. Nowadays, It is known that flavonoids including anthocyanins from (Mio mio) fruit has anticancer properties and other functional properties that made this study a great interest and can be used as a great source of antioxidant as natural dyes. The objective of the present study was to determine the bioactive compounds and antioxidant capacity of (Mio mio) fruit to use in the food industry. The extraction of their pigments were carried out with acidified methanol and into this extract their anthocyanin characteristics were determined by Visible UV spectroscopy, FTIR...
3
artículo
The colors of native pigmented potatoes were extracted, purified and the anthocyanin spectra identified by FTIR and UV Visible in this solution. In the extract, the effect caused by different cooking processes (boiled, fried and microwaved) of native pigmented potatoes was quantified for total anthocyanins (CAT) and total polyphenols (PFT) before and after each process. The content of (CAT) in the native red potato (PST) and purple potato (PWQ) was 59.21 and 19.35 (mg cyanidin 3 glucoside / 100 g) respectively and once processed the potato (PST) decreases its (CAT) to 4.63 (mg cyanidin 3-glucoside / 100g) in the process of cooking by microwave oven, like potato (PWQ) at 1.31 (mg cyanidin 3-glucoside / 100g) in frying. The composition of (PFT) in potato (PST) and (PWQ) of 179.51 and 87.92 (mg gallic acid / 100g) respectively and after processing, are 125.27 (mg gallic acid / 100g) in the ...
4
artículo
The antioxidant capacity in fruit extracts of (Muehlembeckia volcanica) has been characterized, quantified and determined for which the anthocyanin pigments were extracted with 0.01% acidified methanol HCl, filtered, concentrated, centrifuged and fed to a known volume for later analysis. In the extract the content of total anthocyanin’s (CAT) was evaluated by the differential pH method, total polyphenols (PFT) by the Folin-Ciocalteu method and its antioxidant capacity by the TEAC DPPH Method. Extracts characterized by UV-Vis spectrophotometry have maximum absorbance values ​​at 520 nm that correspond to established anthocyanin structures, in the same way by FTIR-ATR spectroscopy strong absorption signals are observed at different vibration frequency values which correspond to anthocyanin functional groups. The HPLC chromatograms of the extract belong to anthocyanin’s delfinidine ...
5
artículo
 The Natural dye demand is growing worldwide. This research is about the extracts of the fruits of (mio-mio) Coriaria ruscifolia L., from which little information is available, but we found in them anthocyanic and polyphenolic compounds   which are great interest as bioactive compounds because of their antioxidant capacity. Nowadays, It is known that flavonoids including anthocyanins from (Mio mio) fruit has anticancer properties and other functional properties that made this study a great interest and can be used as a great source of antioxidant as natural dyes. The objective of the present study was to determine the bioactive compounds and antioxidant capacity of (Mio mio) fruit to use in the food industry. The extraction of their pigments were carried out with acidified methanol and into this extract their anthocyanin characteristics were determined by Visible UV spectroscopy, FTIR...
6
artículo
The colors of native pigmented potatoes were extracted, purified and the anthocyanin spectra identified by FTIR and UV Visible in this solution. In the extract, the effect caused by different cooking processes (boiled, fried and microwaved) of native pigmented potatoes was quantified for total anthocyanins (CAT) and total polyphenols (PFT) before and after each process. The content of (CAT) in the native red potato (PST) and purple potato (PWQ) was 59.21 and 19.35 (mg cyanidin 3 glucoside / 100 g) respectively and once processed the potato (PST) decreases its (CAT) to 4.63 (mg cyanidin 3-glucoside / 100g) in the process of cooking by microwave oven, like potato (PWQ) at 1.31 (mg cyanidin 3-glucoside / 100g) in frying. The composition of (PFT) in potato (PST) and (PWQ) of 179.51 and 87.92 (mg gallic acid / 100g) respectively and after processing, are 125.27 (mg gallic acid / 100g) in the ...
7
tesis de maestría
Se ha evaluado el efecto de los diferentes procesos térmicos de cocción de hervido, frito y horno microondas, sobre los compuestos bioactivos de papas nativas pigmentadas de púlpa roja (PST) y morada (PWQ). Para lo cual se ha extraído las antocianinas de estas muestras con acetona acidificada con HCl 0,01% y cloroformo, filtrando al vacío se concentró en rotavapor luego se centrifugó decantó y aforó a un volumen conocido para su posterior análisis. Además se ha hidrolizado y filtrado con cartucho C-18 para evaluar antocianinas y antocianidinas. En los extractos también se determinó el contenido de antocianinas totales por el método de pH diferencial, polifenoles totales por el método Folin Ciocalteu, capacidad antioxidante por método TEAC – ABTS. Se ha caracterizado antocianinas por FTIR-ATR y UV Visible e identificado antocianidinas por HPLC en ambas variedades de papa...
8
artículo
The antioxidant capacity in fruit extracts of (Muehlembeckia volcanica) has been characterized, quantified and determined for which the anthocyanin pigments were extracted with 0.01% acidified methanol HCl, filtered, concentrated, centrifuged and fed to a known volume for later analysis. In the extract the content of total anthocyanin’s (CAT) was evaluated by the differential pH method, total polyphenols (PFT) by the Folin-Ciocalteu method and its antioxidant capacity by the TEAC DPPH Method. Extracts characterized by UV-Vis spectrophotometry have maximum absorbance values ​​at 520 nm that correspond to established anthocyanin structures, in the same way by FTIR-ATR spectroscopy strong absorption signals are observed at different vibration frequency values which correspond to anthocyanin functional groups. The HPLC chromatograms of the extract belong to anthocyanin’s delfinidine ...
9
artículo
 The Natural dye demand is growing worldwide. This research is about the extracts of the fruits of (mio-mio) Coriaria ruscifolia L., from which little information is available, but we found in them anthocyanic and polyphenolic compounds   which are great interest as bioactive compounds because of their antioxidant capacity. Nowadays, It is known that flavonoids including anthocyanins from (Mio mio) fruit has anticancer properties and other functional properties that made this study a great interest and can be used as a great source of antioxidant as natural dyes. The objective of the present study was to determine the bioactive compounds and antioxidant capacity of (Mio mio) fruit to use in the food industry. The extraction of their pigments were carried out with acidified methanol and into this extract their anthocyanin characteristics were determined by Visible UV spectroscopy, FTIR...
10
artículo
The colors of native pigmented potatoes were extracted, purified and the anthocyanin spectra identified by FTIR and UV Visible in this solution. In the extract, the effect caused by different cooking processes (boiled, fried and microwaved) of native pigmented potatoes was quantified for total anthocyanins (CAT) and total polyphenols (PFT) before and after each process. The content of (CAT) in the native red potato (PST) and purple potato (PWQ) was 59.21 and 19.35 (mg cyanidin 3 glucoside / 100 g) respectively and once processed the potato (PST) decreases its (CAT) to 4.63 (mg cyanidin 3-glucoside / 100g) in the process of cooking by microwave oven, like potato (PWQ) at 1.31 (mg cyanidin 3-glucoside / 100g) in frying. The composition of (PFT) in potato (PST) and (PWQ) of 179.51 and 87.92 (mg gallic acid / 100g) respectively and after processing, are 125.27 (mg gallic acid / 100g) in the ...
11
tesis doctoral
Ante la creciente demanda de colorantes naturales a nivel mundial, se ha estudiado los extractos de los frutos del (mio mio)Coriaria ruscifolia L. del cual se tiene escasa información, encontrando en ellos compuestos antociánicos y polifenólicos los mismos que son de gran interés como compuestos bioactivos por poseer capacidad antioxidante. Actualmente se tiene conocimiento de que los flavonoides entre ellos las antocianinas que contienen los frutos del mio mio tiene propiedades anticancerígenas y otras propiedades funcionales que hacen de gran interés su estudio los mismos que pueden ser usados como una gran fuente de antioxidante como colorantes naturales. El objetivo del presente estudio es determinar los compuestos bioactivos y capacidad antioxidante de los frutos del mio mio para su uso en la industria alimentaria. Se efectuó la extracción de sus pigmentos con Metanol acidif...
12
artículo
The antioxidant capacity in fruit extracts of (Muehlembeckia volcanica) has been characterized, quantified and determined for which the anthocyanin pigments were extracted with 0.01% acidified methanol HCl, filtered, concentrated, centrifuged and fed to a known volume for later analysis. In the extract the content of total anthocyanin’s (CAT) was evaluated by the differential pH method, total polyphenols (PFT) by the Folin-Ciocalteu method and its antioxidant capacity by the TEAC DPPH Method. Extracts characterized by UV-Vis spectrophotometry have maximum absorbance values ​​at 520 nm that correspond to established anthocyanin structures, in the same way by FTIR-ATR spectroscopy strong absorption signals are observed at different vibration frequency values which correspond to anthocyanin functional groups. The HPLC chromatograms of the extract belong to anthocyanin’s delfinidine ...
13
artículo
 The Natural dye demand is growing worldwide. This research is about the extracts of the fruits of (mio-mio) Coriaria ruscifolia L., from which little information is available, but we found in them anthocyanic and polyphenolic compounds   which are great interest as bioactive compounds because of their antioxidant capacity. Nowadays, It is known that flavonoids including anthocyanins from (Mio mio) fruit has anticancer properties and other functional properties that made this study a great interest and can be used as a great source of antioxidant as natural dyes. The objective of the present study was to determine the bioactive compounds and antioxidant capacity of (Mio mio) fruit to use in the food industry. The extraction of their pigments were carried out with acidified methanol and into this extract their anthocyanin characteristics were determined by Visible UV spectroscopy, FTIR...
14
artículo
The colors of native pigmented potatoes were extracted, purified and the anthocyanin spectra identified by FTIR and UV Visible in this solution. In the extract, the effect caused by different cooking processes (boiled, fried and microwaved) of native pigmented potatoes was quantified for total anthocyanins (CAT) and total polyphenols (PFT) before and after each process. The content of (CAT) in the native red potato (PST) and purple potato (PWQ) was 59.21 and 19.35 (mg cyanidin 3 glucoside / 100 g) respectively and once processed the potato (PST) decreases its (CAT) to 4.63 (mg cyanidin 3-glucoside / 100g) in the process of cooking by microwave oven, like potato (PWQ) at 1.31 (mg cyanidin 3-glucoside / 100g) in frying. The composition of (PFT) in potato (PST) and (PWQ) of 179.51 and 87.92 (mg gallic acid / 100g) respectively and after processing, are 125.27 (mg gallic acid / 100g) in the ...
15
artículo
Los terrenos agrícolas con pendientes pronunciadas no son utilizados durante todo el año, porque, el riego tradicional conduce a la baja velocidad de infiltración, erosión de suelos, escorrentía, perdida de los fertilizantes aplicados y baja eficiencia de riego. El objetivo fue evaluar el efecto de la pendiente de terreno y la disposición de tuberías terciarias sobre la uniformidad de riego y el rendimiento del cultivo de arveja. Se acondicionaron tres parcelas con pendientes de 10%, 20% y 40%; y en cada parcela se instalaron tres subunidades de riego, insertando 0, 2 y 6 válvulas manuales en las tuberías terciarias, teniendo un total de 09 tratamientos. Las parcelas se instalaron con cintas de riego de 1.6 l/h de descarga a 20cm entre goteros y a 60cm entre laterales. Los resultados del coeficiente de uniformidad (CU) con mayores valores fue para el T7 (Pendiente de terreno 40%...
16
artículo
Los terrenos agrícolas con pendientes pronunciadas no son utilizados durante todo el año, porque, el riego tradicional conduce a la baja velocidad de infiltración, erosión de suelos, escorrentía, perdida de los fertilizantes aplicados y baja eficiencia de riego. El objetivo fue evaluar el efecto de la pendiente de terreno y la disposición de tuberías terciarias sobre la uniformidad de riego y el rendimiento del cultivo de arveja. Se acondicionaron tres parcelas con pendientes de 10%, 20% y 40%; y en cada parcela se instalaron tres subunidades de riego, insertando 0, 2 y 6 válvulas manuales en las tuberías terciarias, teniendo un total de 09 tratamientos. Las parcelas se instalaron con cintas de riego de 1.6 l/h de descarga a 20cm entre goteros y a 60cm entre laterales. Los resultados del coeficiente de uniformidad (CU) con mayores valores fue para el T7 (Pendiente de terreno 40%...