scholarly journals Effects of cellulolytic treatment conditions on dietary fiber content of grape pomace and use of enzyme-treated pomace in cookie making

2021 ◽  
Vol 947 (1) ◽  
pp. 012045
Author(s):  
Trần Thị Hồng Hạnh ◽  
Lê Nguyên Phúc ◽  
Hồ Hữu Bἀo Duy ◽  
Nguyễn Kim Xuyến ◽  
Trần Thị Thu Trà ◽  
...  

Abstract Grape pomace is a rich source of dietary fibers and phenolic compounds; it has been added to bakery products to enhance their dietary fiber content and antioxidant activity. Nevertheless, the Insoluble Dietary Fiber (IDF) content of grape pomace is significantly higher than the Soluble Dietary Fiber (SDF) content, the IDF/SDF ratio of bakery products was much higher than the recommended value of 3:1 from the dietetic associations. In this research, grape pomace was treated with cellulase preparation to partially convert IDF to SDF. The appropriate conditions of the cellulolytic treatment were as follows: initial moisture content of grape pomace of 7.5 g water/g dry basis, cellulase concentration of 6 U/g dry basis and treatment time of 1 h. Under these conditions, the SDF content increased by 20% and the IDF/SDF ratio decreased by 23.2%. Then, the enzyme-treated grape pomace (ETGP) and untreated grape pomace (UGPM) were separately mixed with wheat flour for cookie formulation; the grape pomace ratio was 20% of the composite flour weight. The use of ETGP or UTGP significantly improved the content of total, insoluble and soluble dietary fiber, total phenolics, anthocyanin of cookies as well as their antioxidant activity measured by DPPH and FRAP assays. Cookies supplemented with ETGP or UTGP had increased hardness and reduced brightness. The enzymatic treatment of grape pomace did not affect the total dietary fiber and antioxidant activity of cookies; however, their IDF/SDF ratio decreased to 12% and the value of 3.7 was close to the recommended ratio from the dietetic associations. Furthermore, the preference scores of ETGP added cookies and UTGP added cookies were higher than that of the control cookies without grape pomace addition.

Food Research ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 906-916
Author(s):  
Y. Welli ◽  
M. Agnes ◽  
P. Yudi ◽  
M. Yustinus

The objective of the recent study was to evaluate the effect of banana pseudostem flour (EBP) to the organoleptic properties, levels of dietary fiber, resistant starch and antioxidants of canna starch-based food bar. The research design was true experimental in the form of completely randomized design with 6 treatments using canna starch: banana pseudostem flour. The six treatments were 100:0, 95:5, 90:10, 85:15, 80:20, and 75:25 ratio. The best food bar was determined by scoring through organoleptic test, content of soluble dietary fiber and antioxidants. Food bars processed with mixture of banana pseudostem flour proportion 85:15 was selected as the best food bar with a score of color attribute 3.12±0.08, aroma 3.00±0.06, flavor 3.04±0.18, texture 3.16±0.12, soluble dietary fiber content 0.83±0.07% db, insoluble dietary fibers of 6.75±0.14% db, total dietary fiber 7.58±0.13% db, resistant starch 6.54±0.24% db, total phenolic 105.75±0.64 mg/100 g, antioxidant activity 6.97±0.77% RSA, color brightness (L*) 52.52±0.60 and hardness level 5.08±1.95 N. The substitution of banana pseudostem flour on the canna starch-based food bar increased level of soluble dietary fiber 0.83%, total dietary fiber 4.81%, resistant starch 2.89%, total phenolic 43.01 mg/100 g and antioxidant activity 3.98% RSA as well as sensory panelists preferred. The higher the mixture pseudostem flour proportion, the higher the tendency of the levels of dietary fiber, resistant starch, total phenolic and antioxidant activity.


Author(s):  
Vinita Vinita ◽  
Darshan Punia

The present investigation was conducted to evaluate the nutrient composition of four varieties of date fruit. The results of the study indicated that the variety Shamran had highest protein (2.77%) content and the variety Medjool the lowest (1.88%). Fat and crude fibre contents of date fruit varieties ranged from 0.17 to 0.50% and 1.71 to 2.22%, respectively. The variety Medjool had lowest amount of total soluble sugars (67.49g/100g) and reducing sugar (61.31g/100g). All the varieties of date fruit differed non-significantly among themselves for their non- reducing sugar content. The variety Khadrawi had the highest amount of starch content. Total dietary fiber (11.70g/100g) and soluble dietary fiber (3.34g/100g) were highest in variety Hillawi. All the four varieties of date fruit differed significantly from each other for their total dietary fiber content and soluble dietary fiber content. The varieties Khadrawi (8.46%), Hillawi (8.35%) and Shamran (7.94%) had significantly (p£ 0.05) higher insoluble dietary fiber as compared to variety Medjool (4.25%). The variety Shamran had highest amount of calcium (195.33mg/100g) and zinc (1.81mg/100g). The variety Medjool contained lowest amount of calcium (70.33mg/100g), iron (1.91mg/100g) and potassium (713mg/100g) while the highest amount of phosphorus (52.66mg/100g). A non-significant (p£0.05) difference was observed in magnesium content of all the varieties. Polyphenol content of date fruits from different varieties ranged from 228.79 to 253.21 mg/100g.


2019 ◽  
Vol 38 (04) ◽  
Author(s):  
Y Yesritha ◽  
R Jaganmohan ◽  
A Surendra Babu

The black gram husk a by-product of black gram milling was collected and proceed to washing. The washed and unwashed samples were separated based on the required particle size (900µm, 450µm). The samples obtained were analyzed for their proximate composition and dietary fiber content. The washed husk samples had shown least amount of fat and ash content ranging from 0.53 to 0.77% and 1.04 to 2.47% respectively. The protein content of the samples ranged from 14.43 to 18.65%. The crude fiber content was found to be highest in WBH ranging from 39.9 to 42.13% due to the removal of tailing starches and other coteledonous material. It was observed that the 450WBH sample had the highest amount of Total dietary Fiber (TDF), Insoluble Dietary Fiber (IDF) and Soluble Dietary Fiber (SDF) content. The TDF content of 450WBH was 90.19%. The obtained data was analyzed by paired comparison (t-Test).


2014 ◽  
Vol 8 (2) ◽  
pp. 145 ◽  
Author(s):  
Rimbawan Rimbawan ◽  
Resita Nurbayani

<p>The objective of this research was to analyze the glycemic index values of gembili products. The research consisted of three stages covered: (1) processing of gembili into three treatments (boiled, steamed, and fried), (2) analyzing of nutrient contents in gembili products, (3) measuring of glycemic index of three processed food. Moisture content (wet based/wb) in boiled, steamed and fried gembili were 68.09%, 62.11%, and 49.09% respectively. Ash content (dry based/db) in boiled, steamed and fried gembili were 1.62%, 2.15%, and 2.13% respectively. Fat content (dry based/db) were 0.63%, 0.37% and 7.75%, while protein content (dry based/db) were 3.71%, 2.99%, and 4.25%. Insoluble dietary fiber content (dry based/db) between 11.79% to 13.43%, while was higher than soluble dietary fiber content (dry based/db) between 5.84% to 10.88%. Total dietary fiber content (dry based/db) in boiled, steamed and fried gembili were 19.01%, 18.15%, and 24.30% respectively, while carbohydrate by difference content (dry based/db) were 91.05%, 93.33%, and 88.88% respectively. The results of this study indicated that all glycemic index values of gembili products were high (&gt;70). Glycemic index values gembili boiled, steamed, and fried gembili were 85.56, 87.56, and 83.61 respectively. Analysis of variance test One Way ANOVA showed that those treatments did not significantly affect the glycemic index value (p&gt; 0.05).</p>


Author(s):  
PATRÍCIA MARIA PÉRICO PEREZ ◽  
ROGÉRIO GERMANI

O objetivo deste trabalho foi estudar as características físicas e químicas da farinha de berinjela pura e em combinação com farinha de trigo. A farinha de berinjela apresentou elevado teor de fibra alimentar total e alta quantidade de proteína, de cinzas e de açúcares totais. Maior concentração de farinha de berinjela em misturas com a farinha de trigo aumentou significativamente os teores de proteína, de sais minerais e de fibra alimentar total das farinhas mistas. O alto teor de fibra alimentar da farinha de berinjela permite apontá-la como alternativa para uso em mistura com farinha de trigo na elaboração de produtos de panificação (biscoitos, pães e massas alimentícias). Maior quantidade de farinha de berinjela na farinha mista amplia a capacidade da mistura em absorver água, podendo aumentar o rendimento da massa em produtos de panificação. A farinha de berinjela é facilmente obtida na granulometria da farinha de trigo, facilitando sua homogeneização. WHEAT AND EGGPLANT MIXED FLOUR: PHYSICAL AND CHEMICAL CHARACTERISTICS Abstract The aim of the present work was to study the physical and chemical characteristics of eggplant flour and its combination with wheat flour. The eggplant flour presented high total dietary fiber content and high protein, ashes and total sugars contents. Higher concentration of eggplant flour in mixtures with wheat flour significantly enhanced protein mineral salts and total dietary fiber content of the mixed flours. The high dietary fiber content of the eggplant flour allows to designate it as utilization alternative in mixture with wheat flour in the elaboration of bakery products (cookies, breads and pasta). Greater quantity of eggplant flour in the mixed flour enlarges the mixture capacity to absorb water, being able to enhance the mass yield in bakery products. The eggplant flour is easily obtained at particle size similar to wheat flour, facilitating its homogenization.


Pro Food ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 609
Author(s):  
Arin Tria Agustin

ABSTRACT This study aims to determine the combination of methods and temperature of blanching treatment on crude fiber content, total dietary fiber, insoluble dietary fiber content and soluble dietary fiber content of banana steam as raw material of ares. The experimental design used in this study was Completely Randomized Block Design (CRBD) factorial with six treatments and three repetitions to obtain 18 samples. The combination of treatment consisted of M1T1 (steaming 75°C), M1T2 (steaming 85°C), M2T1 (boiling 75°C), M2T2 (boiling 85°C), M3T1 (boiling with Na2S2O5 0,1% solution 75°C), M3T2 (boiling with Na2S2O5 0,1% solution 85°C). The result of this study were analyzed using ANOVA (Analysis of Variance) diversity analysis at 5% level using Co-Stat Software. The result that had significant differences were continued to analyzed using Honestly Significant Different Test (BNJ) at 5% real level. The result showed that the combination of methods and temperature of blanching treatment did have a significant effect oncrude fiber content, insoluble dietary fiber content, soluble dietary fiber content dan total dietary fiber content. The best result of banana stem based on nutritional quality of fiber was steaming 75°C treatment with crude fiber content 0.5413%, total dietary fiber content 22.059%, insoluble dietary fiber content 19.978% and soluble dietary fiber content 2.081%. The best result of Ares based on nutritional quality of fiber was steaming 75°C treatment with crude fiber content 4,321%, total dietary fiber content 46,057%, insoluble dietary fiber content 42,112% and soluble dietary fiber content 3,945%. Keywords: ares, banana stem, blanching, crude fiber, dietary fiber. ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh kombinasi metode dan suhu blanching terhadap kadar serat kasar, kadar serat pangan total, kadar serat pangan tidak larut dan kadar serat pangan larut batang pisang sebagai bahan baku pembuatan Ares. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) pola faktorial dengan enam kombinasi perlakuan dan tiga kali pengulangan sehingga diperoleh 18 sampel. Kombinasi perlakuan terdiri dari M1T1 (pengukusan 75°C), M1T2 (pengukusan 85°C), M2T1 (perebusan 75°C), M2T2 (perebusan 85°C), M3T1 (perebusan dengan larutan Na2S2O5 0,1% 75°C), M3T2 (perebusan dengan larutan Na2S2O5 0,1% 85°C). Data hasil pengamatan diuji dengan analisis keragaman pada taraf nyata 5% menggunakan software Co-Stat. Apabila terdapat perbedaan nyata, maka dilakukan uji lanjut Beda Nyata Jujur (BNJ) pada taraf 5%. Hasil terbaik batang pisang berdasarkan mutu nutrisi serat yaitu perlakuan pengukusan 75°C dengan kadar serat kasar 0,5413%, kadar serat pangan tidak larut 19,978%, kadar serat pangan larut 2,081% dan kadar serat pangan total 22,059%. Hasil terbaik pada ares berdasarkan mutu nutrisi serat adalah perlakuan pengukusan pada suhu 75°C dengan kadar serat kasar 4,321%, serat pangan total 46,057%, serat pangan tidak larut 42,112% dan serat pangan larut 3,945%. Kata kunci: Ares, batang pisang, blanching, serat kasar, serat pangan.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Yosep Rudol Parinding ◽  
Edi Suryanto ◽  
Lidya Irma Momuat

Penelitian ini bertujuan untuk mengetahui karakteristik dan aktivitas antioksidan serat pangan dari tepung biji alpukat yang diekstraksi menggunakan gelombang ultrasonik dengan pelarut etanol dan aquades. Penelitian ini terdiri dari 3 tahap yaitu mikronisasi, ekstraksi dan karakterisasi. Parameter yang digunakan adalah komposisi proksimat, serat pangan, kandungan hemiselulosa, selulosa, lignin, karakteristik gugus fungsi, aktivitas antioksidan dan kapasitas penangkal nitrit. Hasil karakterisasi secara fisik tepung biji alpukat yang diekstraksi dengan etanol (EBA) dan aquades (ABA) dengan Fourier Transform Infra Red (FTIR) tidak mengalami perubahan mendasar pada komponen utama setelah proses penggilingan dan ekstraksi secara sonikasi. Hasil karakterisasi secara kimia menunjukkan EBA mengandung komposisi kimia seperti air (7,94%), abu (1,87%), protein (5,32%), lemak (0,47%) serat pangan tak larut (18,40%), serat pangan larut (0,24%), serat pangan total (18,64%), hemiselulosa (42,69%), selulosa (4,35%) dan lignin (15,14%). ABA mengandung air (8,84%), abu (1,64%), protein (5,20%), lemak (0,79%) serat pangan tak larut (17,79%), serat pangan larut (0,37%), serat pangan total (18,16%), hemiselulosa (37,71%), selulosa (5,47%) dan lignin (20,08%). Hasil pengujian aktivitas antioksidan menunjukkan bahwa ekstrak fenolik terikat EBA (95,93%) tertinggi diikuti oleh ekstrak fenolik terikat ABA (92,22%), ekstrak fenolik bebas EBA (85,04%) dan ekstrak fenolik bebas EBA (77,51%).ABSTRACTThe objectives of this research were to determine the characteristics and antioxidant activity of dietary fiber from avocado seed powder extracted using ultrasonic waves with ethanol and aquades as solvents. This research consisted of 3 stages, namely micronization, extraction and characterization. The parameters used were proximate composition, dietary fiber, hemicellulose content, cellulose, lignin, functional group characteristics, antioxidant activity and nitrite-scavenging capacity. The results of physical characterization of avocado seed flour extracted with ethanol (EBA) and distilled water (ABA) with Fourier Transform Infra Red (FTIR) did not experience a fundamental change in the main components after the milling and extraction process by sonication. The results of chemical characterization showed that EBA contained chemical compositions such as water (7,94%), ash (1,87%), protein (5,32%), fat (0,47%) insoluble dietary fiber (18,40%), soluble dietary fiber (0,24%), total dietary fiber (18,64%), hemicellulose (42,69%), cellulose (4,35%) and lignin (15,14%). ABA contains water (8,84%), ash (1,64%), protein (5,20%), fat (0,79%) insoluble dietary fiber (17,79%), soluble dietary fiber (0,37%), total dietary fiber (18,16%), hemicellulose (37,71%), cellulose (5,47%) and lignin (20,08%). The results of the antioxidant activity test showed that EBA had the highest bound phenolic extract (95,93%) followed by ABA bound phenolic extract (92,22%), EBA-free phenolic extract (85,04%) and EBA-free phenolic extract (77,51 %).


2003 ◽  
Vol 39 (s1) ◽  
pp. 20-20
Author(s):  
O. J. Haleakala ◽  
S. M. Mccutcheon ◽  
B. Stuercke ◽  
K. J. Mcdermid

2017 ◽  
Vol 6 (2) ◽  
pp. 1 ◽  
Author(s):  
Aynur Gunenc ◽  
Christina Alswiti ◽  
Farah Hosseinian

The potential of wheat bran (WB) addition as a prebiotic source were demonstrated using yogurt with probiotics (Lactobacillus acidophilus and Bifidobacterium lactis). Yogurts (with 4% WB) were significantly (P < 0.05) different in total bacterial counts (9.1 log CFU/mL), and total titratable acidity % (TTA, 1.4%) compared to controls during 28 days cold storage (4°C). Additionally, WB-total dietary fiber contents and their bound phenolic profiles were investigated as well as the antioxidant activity of WB-water extractable polysaccharides (WEP) was studied. HPLC analysis of alkaline hydrolyzed DF fractions showed that insoluble DF had higher phenolic acids (84.2%) content than soluble DF (15.8%). Also, crude-WEP showed stronger antioxidant activity compared to purified-WEP with an ORAC of 71.88 and 52.48 µmol TE/g, respectively. Here we demonstrate WB has potentials as a source of prebiotics, which may have the potentials for functional foods and nutraceutical applications.


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