scholarly journals Development of new microalgae-based sourdough “crostini”: functional effects of Arthrospira platensis (spirulina) addition

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Alberto Niccolai ◽  
Manuel Venturi ◽  
Viola Galli ◽  
Niccolò Pini ◽  
Liliana Rodolfi ◽  
...  

AbstractThe aim of this work was to evaluate the influence of Arthrospira platensis F&M-C256 (spirulina) incorporation on the nutritional and functional properties of “crostini”, a leavened bakery product largely consumed in Italy and Europe. Sourdough was used as leavening and fermentation agent and three concentrations of A. platensis F&M-C256 were tested: 2%, 6% and 10% (w/w). Despite a lower volume increase compared to the control, the A. platensis F&M-C256 “crostini” doughs reached a technological appropriate volume after fermentation. At the end of fermentation, no significant differences in microorganisms concentrations were observed. A. platensis F&M-C256 “crostini” showed higher protein content compared to the control. Considering the European Commission Regulation on nutritional claims, “crostini” incorporated with 6% and 10% biomass can be claimed to be a “source of protein”. Six and ten percent A. platensis “crostini” also presented significantly higher antioxidant capacity and phenolics. A significantly lower value of in vitro dry matter and protein digestibility between A. platensis F&M-C256 “crostini” and the control was found. The overall acceptability decreased with increasing A. platensis F&M-C256 addition. The combination of spirulina biomass addition and the sourdough technology led to the development of a novel microalgae-based bakery product with nutritional and functional features.

Author(s):  
Petra Vojtíšková ◽  
Stanislav Kráčmar

The aim of this study was to determine crude protein, fibre and phytic acid in vitro digestibility of selected legumes and buckwheat products. All analyses except the phytic acid contents were performed in the line with the Commission Regulation (EC) No. 152/2009. A modified version of Holt’s Method was used for phytic acid (phytate) determination. None of all samples contained more than 11% of moisture. Soybeans are rich in crude protein; they contain nearly 40% of this compound. The content of crude protein in buckwheat flours was about 14%. The highest amount of phytate was found in common beans and soybeans-about 2 g/100 g of dry matter. On the other hand, the lowest phytate content was observed in buckwheat pasta (< 1 g/100 g). The quantification of phytate in F. esculentum groats was 1.9 g per 100 g of dry matter. In vitro digestibility was determined using an incubator Daisy and pepsin enzymes and the combination of pepsin and pancreatin. The highest coefficient of crude protein digestibility was discovered to be in peels and wholemeal flour. The greatest fibre digestibility coefficients were obtained for peels, which contain about 65% of fibre in their dry matter. When pepsin was used, a higher phytic acid digestibility coefficient for G. max, Ph. vulgaris, peels, flour, groats and broken groats was observed; while when the combination of pepsin and pancreatin was used, higher phytic acid digestibility coefficients for peas, lentil and wholemeal flour were observed.


2017 ◽  
Vol 119 (4) ◽  
pp. 909-920 ◽  
Author(s):  
Jaspreet Kaur ◽  
Amarjeet Kaur ◽  
Jaspreet Singh

Purpose The purpose of this paper is to assess the bioactive ingredients of whole flours of oat, maize and soyabean, utilise them for developing functional cookies and evaluate their physical and nutritional quality parameters. Design/methodology/approach Cookies were prepared from blends of whole flours of wheat, oats, maize and full fat soyabean. Whole wheat and oat flours were blend in different proportions (100:0, 80:20, 60:40, 40:60 and 20:80 and 0:100, wheat:oat, w/w) and supplemented with quality protein maize (QPM) and full fat soyabean flours, at 10 per cent (w/w) each, of the total blend. Cookies were studied for their physical attributes, proximate and nutritional compositions. A significant (p=0.05) increase in spread ratio, crude protein, crude fat and crude fibre contents of the cookies was observed with increase in the proportion of oat flour in the blend. Findings Cookies prepared from blend containing QPM and soyabean flours had higher antioxidant activity than control whole wheat cookies. An increase in extractable β-glucan content and in-vitro protein digestibility was also observed with the increase in the proportion of oat flour. The highest overall acceptability was observed for cookies prepared from blends having a wheat–oat proportion of 60:40. These cookies also had a 17.5 per cent higher genistein content as compared to their raw flour blend. Higher genistein levels were observed in the composite cookies. Originality/value The cookies prepared from composite whole flours rich in isoflavones and β-glucan reflect their potential as a new functional food for the prevention and management of diseases such as cancers, diabetes and cardiovascular disorders.


Author(s):  
Ranjani Amarakoon ◽  
Stanislav Kráčmar ◽  
Ignác Hoza ◽  
Pavel Budinský

The aim of this study was to investigate the effect of various cooking methods on nutritional qua­li­ty by evaluating in vitro digestibility of some selected legumes (two cultivars Pisum sativum and Glycine max). Samples were soaked in 0.2% NaHCO3 for 6 hours and then cooked by normal (20, 25, 30 and 35 min) pressure (8, 10, 12 and 14 min) and microwave (8, 10, 12 and 14 min) cooking. In vitro protein and dry matter digestibility were investigated. Pressure cooking and microwave cooking are recommended after soaking with the cooking time between 8–14 mins for P. sativum (Xantos and Svit) and G. max. Based on in vitro protein digestibility of all the cooking treatments, pressure cooking is the most effective.


2020 ◽  
Vol 17 (1) ◽  
pp. 45
Author(s):  
Tri Astuti

This research aimed to study effect of Corn cob fermentation using Panerochaeta chrysosporium with adding the different sources of carbohydrat on the digestibility of dry matter, organic matter, and crude protein by in-vitro methode. A Completely Randomized Design  with 4 treatments and  4 replications. The treatments  were : P0 = fermented corncobs + without carbohydrt, P1 = fermented corncobs + 10% rice bran; P2 = fermented corncobs + tapioca flour 10%; P3 = corncob fermented + molasses 10%. The results of this study shown a very significant affected  (P <0.01) on the digestible of dry matter and organic matter but no affected (P> 0.05) on crude protein digestibility. The best results  digestibility of dry matter (66.98%) on the  P3 treatment adding  molasses, and  the highest digestibility of organic matter (67.49%) on the P3 treatment too, but the highest digestibility of  crude protein (51.37%)  in P1 treatment (adding by rice bran)


Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 918 ◽  
Author(s):  
Francesco Serrapica ◽  
Felicia Masucci ◽  
Emiliano Raffrenato ◽  
Maura Sannino ◽  
Alessandro Vastolo ◽  
...  

Fifteen oilseed cakes from sunflower, pomegranate, cardoon, tobacco and hemp were characterized with regard to chemical composition, Cornell Net Carbohydrate and Protein System (CNCPS) fractionation, in vitro digestibility of dry matter, neutral detergent fiber, and crude protein. All the cakes presented low moisture, rather variable ether extract contents and medium to high levels of crude protein and neutral detergent fiber. The cakes significantly differed in terms of CNCPS partitioning and in vitro digestibility. Tobacco and hemp cakes presented high contents of slow degradable fractions of crude protein and carbohydrate joined to good post-ruminal protein digestibility. Cardoon cakes presented the highest rumen protein degradability. Based on crude protein content and intestinal digestibility of rumen undegraded protein, cakes of tobacco and hemp showed the better potential as alternative protein supplements for ruminants, while pomegranate appears to be the least suitable for ruminant feeding.


2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Warinporn Klunklin ◽  
Geoffrey Savage

Purple rice flour contains high levels of a number of antioxidant compounds; however, it has seldom been used as an ingredient in bakery products. The aim was to increase the nutritional value of biscuits by adding purple rice flour to a basic wheat flour biscuit. The substitution of purple rice flour in place of wheat flour modified the characteristics of the biscuits in terms of increasing the nutritional values. They contained high fiber, antioxidants, and antioxidant activities, while slightly changing the physical properties such as hardness and spread ratio. The study showed that the protein digestibility increased as the content of the purple rice flour was increased in the biscuit mix. The 100% purple rice flour biscuits had the lowest predicted glycemic index (pGI) of all the biscuits. Sensory analysis showed that the overall acceptability of the blended flour biscuits at 25 and 50% substitution levels was slightly less than that of the control biscuits with only 9%; however, the scores were above 5 which means the panelists still liked the biscuits a lot. Overall, the inclusion of purple rice flour in biscuits mix increased crude protein content, protein digestibility, and bioactive compounds with acceptable sensory scores from consumers up to 50% substitution of purple rice.


2019 ◽  
Vol 43 (4) ◽  
Author(s):  
Rahma Fitriastuti ◽  
Lies Mira Yusiati ◽  
Budi Prasetyo Widyobroto ◽  
Zaenal Bachruddin ◽  
Chusnul Hanim

The current study was aimed to evaluate the ability of phenol content in cashew nutshell liquid (CNSL) in binding protein and its effect on in vitro nutrient digestibility. This research divided into three steps, there were determination of total phenol and tannins content in CNSL, optimalization binding of CNSL tannin to bovine serum albumin with the determination of protein-percipitable phenolics compound and protein content using Lowry method, after that amount of optimalization supplementation of CNSL was used for measuring on in vitro nutrient digestibility by Tilley and Terry method. The results showed that phenol and tannin content of CNSL were 148.69 g/100 ml and 28.3 g/100 ml. One gram tannin in CNSL could be bound by 65.83 g protein. Optimum tannin were used in this study was 5.85 g tannin or equivalent to 163.91 mg of CNSL. Amount of CNSL were used in various levels, there are 0, 50, 100, 150 dan 200 mg. CNSL supplementation reduced dry matter, organic matter crude protein digestibility in rumen, and didn’t reduce dry matter dan crude protein in vitro post rumen digestibility. Supplementation of CNSL increased feed efficiency on in vitro.


Author(s):  
Ali Mursyid Wahyu Mulyono ◽  
Sri Sukar Yani ◽  
Jizan Fahmia Al Awanis

Abstract The aim of this study was to examine the use of Gizzard Contents Extracts (GCE) and Duodenum Contents Extracts (DCE) of Chicken on In Vitro digestibility measurements of Turi Leaves (Sesbania grandiflora). The study was designed using a One-way Classification of Completely Randomized Design (CRD) with 4 treatments. Each treatment was repeated three times. Types of treatment in the form of using GCE and DCE, including: (1) control treatments (without GCE or DCE), (2) GCE, (3) DCE, and (4) a mixture of GCE and DCE. The observed variables were Coefficient of Dry Matter Digestibility (CDMD), Coefficient of Organic Matter Digestibility (COMD), and Coefficient of Soluble Protein Digestibility (CSPD). The results showed that the addition of GCE, DCE, and a mixture of GCE and DCE could not increase the CDMD, COMD, and CSPD of Turi Leaves compared to the control treatment. Keywords: Duodenal contents extract; Gizzard content extract; In vitro digestibility; Turi leaves.   Abstrak Penelitian bertujuan untuk mengkaji penggunaan cairan ekstrak isi gizzard (CEIZ) dan duodenum (CEID) ayam pada pengukuran kecernaan in vitro daun turi. Penelitian dirancang menggunakan Rancangan Acak Lengkap (RAL) pola searah dengan 4 perlakuan. Masing-masing perlakuan diulang tiga kali. Macam perlakuan berupa penggunaan penggunaan CEIZ dan CEID ayam, meliputi perlakuan kontrol (tanpa CEIZ maupun CEID), CEIZ, CEID, dan campuran CEIZ dan CEID. Variabel pengamatan berupa koefisien cerna bahan kering (KCBK), koefisien cerna bahan organic (KCBO), dan koefisien cerna protein terlarut (KCPT). Hasil penelitian menunjukkan bahwa perlakuan penambahan cairan ekstrak isi gizzard, duodenum dan campuran keduanya tidak dapat meningkatkan KCBK, KCBO, dan KCPT daun turi dibandingkan dengan perlakuan control. Kata kunci: Cairan ekstrak isi duodenum; Cairan ekstrak isi gizzard;  Daun turi; Kecernaan in vitro.


Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1273
Author(s):  
Rongrong Li ◽  
Mingli Zheng ◽  
Di Jiang ◽  
Pengjiao Tian ◽  
Menghu Zheng ◽  
...  

To develop an alternative high-protein forage resource to alleviate ruminant feed shortages, we investigated the effects of replacing alfalfa (Medicago sativa L.) with different ratios of paper mulberry (Broussonetia papyrifera L., RY) on fermentation quality, protein degradation, and in vitro digestibility of total mixed ration (TMR) silage. The TMR were made with alfalfa and RY mixtures (36.0%), maize meal (35.0%), oat grass (10.0%), soybean meal (7.5%), brewers’ grain (5.0%), wheat bran (5.0%), premix (1.0%), and salt (0.5%) on a dry matter basis, respectively. The alfalfa and RY mixtures were made in the following ratios of dry matter: 36:0 (RY0), 27:9 (RY9), 18:18 (RY18), 9:27 (RY27), and 0:36 (RY36). After ensiling for 7, 14, 28, and 56 days, fermentation quality, protein degradation, and microbial counts were examined, and chemical composition and in vitro digestibility were analyzed after 56 days of ensiling. All TMR silages, irrespective of the substitution level of RY, were well preserved with low pH and ammonia nitrogen content, high lactic acid content, and undetectable butyric acid. After ensiling, the condensed tannin content for RY18 silages was higher than the control, but non-protein nitrogen, peptide nitrogen, and free amino acid nitrogen contents was lower, while the fraction B1 (buffer-soluble protein) was not different among all the silages. Dry matter and crude protein digestibility for RY27 and RY36 silages was lower than the control, but there was no difference between control and RY18 silages. This study suggested that ensiling RY with alfalfa inhibited true protein degradation, but decreased in vitro dry matter and crude protein digestibility of TMR silages, and that 18:18 is the optimal ratio.


2021 ◽  
Vol 3 (2) ◽  
pp. 92
Author(s):  
Tri Ambarwati ◽  
Ali Mursyid Wahyu Mulyono ◽  
Engkus Ainul Yakin

Protein source feed is the feed that has the biggest share in the nutritional needs of livestock. Lamtoro or Leucaena leucocephala is one of the leaf flours that can be used as an alternative feed ingredient for poultry in the tropics. With its abundant availability and does not compete for its needs with humans and has no selling value so that it can minimize consumption costs for poultry. This study aims to determine the effect of fluid from the digestive tract of chickens on the in vitro digestibility measurement of lamtoro leaves. The study used a completely randomized design (CRD) with a unidirectional pattern with 4 treatments and 3 replications. The treatments consisted of P0 = control, P1 = gizzard fluid, P2 = duodenal fluid and P3 = a mixture of gizzard and duodenal fluid. The results of this study show the average Dry Matter Digestibility Coefficient (%) for the treatment P0, P1, P2 and P3 respectively; 19.276, 29.089, 20.515 and 28.737. Organic Matter Digestibility Coefficient ; 27.702, 36.313, 24.795 and 35.649. Dissolved Protein Digestibility Coefficient ; 39.777, 53.288, 21.145 and 48.737. The results of the statistical test that the administration of lamtoro leaves showed a significant difference (P<0.05) on the digestibility coefficient of dry matter, organic matter and dissolved protein. The conclusion is that the use of gizzard liquid is more effective in increasing the in vitro digestibility of lamtoro leaves.


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