Search results

1 – 10 of 449
Article
Publication date: 1 October 1902

Certain daily papers have recently made a discovery of such importance that they have been compelled to deal with it in leading and special articles. From a report of the Local…

Abstract

Certain daily papers have recently made a discovery of such importance that they have been compelled to deal with it in leading and special articles. From a report of the Local Government Board they appear to have just learned that the milk supply of the Metropolis is more adulterated than that of the provinces, and that the cost to the consumer—of water sold as milk in London alone—amounts to at least £30,000 sterling annually.

Details

British Food Journal, vol. 4 no. 10
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 30 April 2018

Sepideh Yosefzadeh Sani, Sayed Ali Mortazavi, Zahra Sheikholeslami, Mehdi Karimi and Amir Hossein Elhamirad

In the past decades, the desire to use natural source foods has increased because of environmental compatibility, safety and appropriate costs. Sonication is used in food industry…

Abstract

Purpose

In the past decades, the desire to use natural source foods has increased because of environmental compatibility, safety and appropriate costs. Sonication is used in food industry owing to its short duration of process and saving energy. The purpose of this study is to investigate the effect of various maize starches in the batter on the oil absorption and quality assessment (moisture content) of chicken nuggets by using five mathematical models.

Design/methodology/approach

To determine the effects of different maize starches on oil absorption parameters, 5 per cent starches native, sonicated starch were substituted in batter instead of wheat flour. Suspensions contained native starch were treated with sonication (70 kHz, 5 min) using an ultrasound probe set. Samples were fried in a fryer at 150, 170 and 190°C for 1, 3and 5 min, respectively. Models were compared with R2 and Arrhenius equation for estimating model prediction sufficiency.

Findings

Obtained results represented that between different formulated samples, maize starch with high temperature had main significant effect (p < 0.05) on moisture content of nuggets. During frying, the amount of oil loses significantly (p < 0.05) depended on temperature and time and sonication treatment.

Originality/value

Incorporation of sonication with maize starch at higher temperature on quality assessment has not been found.

Details

Nutrition & Food Science, vol. 48 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 6 March 2017

Zhibang Qiao, Shanshan Lv, Jiyou Gu, Haiyan Tan, Junyou Shi and Yanhua Zhang

The purpose of this paper is to obtain high-solids-content and low-viscosity starch adhesive, and improve bonding strength of the pure starch adhesive.

Abstract

Purpose

The purpose of this paper is to obtain high-solids-content and low-viscosity starch adhesive, and improve bonding strength of the pure starch adhesive.

Design/methodology/approach

Maize starch was treated by hydrochloric acid solution with different concentrations, and acid-thinned starch adhesive was prepared. Polyisocyanate as a crosslinking agent was added to improve water resistance of the pure starch adhesive.

Findings

The physical and chemical properties of the acid-thinned starch adhesive were characterised. Acid hydrolysis did not change structure of starch granules, but increased its crystallinity. After acid modification, starch granules became less smooth and some fragments appeared. Acid treatment had little influence on thermal stability of starch, when acid hydrolysis was not strong. High concentration of HCl solution led to starch granules being destroyed, resulting in decrease in bonding strength. The optimal HCl concentration was 0.5 mol/L. Polyisocyanate addition was beneficial to improve the bonding strength of the acid-thinned starch adhesive.

Research limitations/implications

Acid hydrolysis changed the properties of the starch adhesive.

Practical implications

Acid hydrolysis decreased viscosity of the starch adhesive and improved its solids content, which had a positive effect on the application of the starch adhesive.

Social implications

It was helpful to develop an environment-friendly, natural polymer-based wood adhesive.

Originality/value

The properties of acid-thinned starch and acid-thinned starch adhesive were studied.

Details

Pigment & Resin Technology, vol. 46 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 1 March 1974

C.T. Greenwood

Starch is the food‐reserve material of all higher plants, where it is stored in the form of characteristic, cold water‐insoluble particles known as starch granules. As starches

Abstract

Starch is the food‐reserve material of all higher plants, where it is stored in the form of characteristic, cold water‐insoluble particles known as starch granules. As starches are polymers of glucose, which are readily assimilated, they form an important source of nutritional energy in the human diet. Indeed, a very high proportion of the world's food energy‐intake is as starch, and cultivation of plant sources rich in this polysaccharide are widespread. 82% of all food crops are composed of cereals and starchy root‐crops.

Details

Nutrition & Food Science, vol. 74 no. 3
Type: Research Article
ISSN: 0034-6659

Article
Publication date: 1 December 1902

We publish elsewhere a report of the judgment delivered by Mr. LOVELAND‐LOVELAND, K.C., Chairman of the County of London Sessions, in the case of the Kensington Borough Council…

Abstract

We publish elsewhere a report of the judgment delivered by Mr. LOVELAND‐LOVELAND, K.C., Chairman of the County of London Sessions, in the case of the Kensington Borough Council versus Bugg. The termination of this case has been called a “compromise” by some of the trade journals, and it is well to point out that it was nothing of the kind. When a conviction is confirmed in a higher court, and when proceedings are stayed upon an undertaking being given by the defendants that they will do what they were proceeded against for not doing, the description of such circumstances by the term “compromise” is ridiculous—particularly when a judgment is accompanied by remarks so decisive and uncompromising as those which were made by the learned Chairman in reference to this case. The suggestion that the case should bo brought to a conclusion in the manner indicated came from the Bench, who were evidently perfectly satisfied as to the meaning which attaches to the word “Cornflour,” and the course suggested was obviously intended merely to save the time of the Court; while the fact that the defendants submitted to the terms imposed without oven attempting to bring forward such evidence as they might have been able to get to support their position, is in itself amply sufficient to show that their advisers had appreciated the weakness of their case. There has been the usual outery in the trade journals about the sufferings of the innocent tradesman, and about “interference with the liberties of manufacturers.” In the whole history of the administration of the Food Acts in this country there are hardly any instances of prosecutions for the sale of an article under a name which is properly applicable to another, in which such outcries have not been raised. Such outcries may, however, be taken as blessings in disguise, since they mainly serve to emphasise the facts and to educate the public. The term “Cornflour” is well known to have originated from the expression “Indian Corn Flour,” and it unquestionably has a specific meaning which is not applicable to either of the two words of which the term is made up. Originally, perhaps, the term “Indian Corn Flour” may have meant the actual meal of Indian Corn or Maize, but, by the usage of more than forty years the term “ Cornflour” means the prepared starch of Maize. No doubt it has been honestly thought by some that in view of this fact any starch might bo described as “Cornflour,” but such a position is quite untenable There is no argument which can bo adduced in support of the contention that rice starch may bo described as Cornflour, which cannot also be brought forward in support of a statement that any starch whatever may be sold as Cornflour. The absurdity of this position is so obvious that it is needless to discuss it. The starches obtained from different sources are different in physical characters, in structure, and in other respects. For these reasons they are differently acted upon by the digestive juices. Moreover different starch preparations exhibit differences which are due to the presence of minute amounts of special flavouring substances derived from the raw material; and these differences it is most important to consider since they often give to an article certain characters which are required by the purchaser. A number of instances in point could be brought forward. It is no more permissible to substitute rice starch for maize starch than it is to substitute potato starch for arrowroot starch, and, for reasons which are perfectly well known and always acted upon in the medical profession, a medical man who orders a patient to be fed on a particular starch food, such as cornflour, would strongly and rightly object—particularly in certain cases —to the substitution of another starch preparation for that which he had ordered. The matter has been settled in such a way and with so strong an expression of opinion on the part of the tribunal which dealt with it, that we think it unnecessary to discuss it further.

Details

British Food Journal, vol. 4 no. 12
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 18 February 2019

Julia Kaufhold, Johannes Kohl, Venkatesh Naidu Nerella, Christof Schroefl, Christoph Wenderdel, Paul Blankenstein and Viktor Mechtcherine

Extrusion-based digital construction (DC) approaches make it feasible to overcome constraints of conventional construction, namely, high formwork costs, long total construction…

Abstract

Purpose

Extrusion-based digital construction (DC) approaches make it feasible to overcome constraints of conventional construction, namely, high formwork costs, long total construction times, low productivity and geometrical inflexibility. However, to date, no satisfactory solutions for extruding strongly inclined and horizontal elements are available. A wood-starch-composite has been systematically developed as a sustainable support material (SM) for extrusion-based DC.

Design/methodology/approach

Material and process-specific requirements were identified for this purpose, and a feasible process chain was developed. A parametric study was conducted to determine the influence of SM composition on its extrusion feasibility and compressive strength. Various compositions with two starch types and two wood particle shapes were tested. New, specific testing methods were developed. Selected compositions were tested using a 3D-printing device to verify extrudability and form stability.

Findings

Relationships between material compositions of SM and its rheological and mechanical properties were identified. All mixtures showed sufficient compressive strength in respect of the loading conditions analysed. However, their flow properties varied significantly. A mixture of native maize starch and wood floor was identified as the best variant (compressive strength 2.3 MPa).

Research limitations/implications

Comprehensive investigations of possible process chains, as well as full-scale demonstration and optimisation of the process parameters, were not in the scope of this paper. Such investigations are intended in further studies.

Practical implications

The general applicability of wood-based SM for DC with cement-based construction materials was proved.

Originality/value

The findings offer a novel and promising solution for 3D-printing of non-vertical concrete elements. Experimental setup and material compositions are detailed to ensure reproducibility.

Details

Rapid Prototyping Journal, vol. 25 no. 4
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 1 January 1985

The formulated proposals for this legal principle in the trade battern of the European Community have again appeared in the EEC draft Directive. It has been many years in coming…

Abstract

The formulated proposals for this legal principle in the trade battern of the European Community have again appeared in the EEC draft Directive. It has been many years in coming, indicating the extreme difficulties encountered in bringing some sort of harmony in the different laws of Member‐states including those of the United Kingdom, relating to the subject. Over the years there were periods of what appeared to be complete inactivity, when no progress was being made, when consultations were at a stand‐still, but the situation was closely monitored by manufacturers of goods, including food and drink, in the UK and the BFJ published fairly detailed reviews of proposals being considered — in 1979 and 1981; and even as recently as the last few months — in “Consumerism in the Community”, the subject was briefly discussed.

Details

British Food Journal, vol. 87 no. 1
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 11 July 2016

Marta Aurelia Horianski, Juan Manuel Peralta and Luis Alberto Brumovsky

The purpose of this study was to analyze the influence of epichlorohydrin (ECH) concentration and reaction time on the food-grade resistant starch production and its pasting…

Abstract

Purpose

The purpose of this study was to analyze the influence of epichlorohydrin (ECH) concentration and reaction time on the food-grade resistant starch production and its pasting properties by using native cassava starch of Misiones-Argentina origin.

Design/methodology/approach

Cassava starch was modified using ECH (0.30 and 0.15 per cent) during 4 or 8 h. Digestibility was evaluated by determining resistant starch as total dietary fiber. Pasting properties and the cross-linking degree were studied using a micro-viscoamylograph (Brabender).

Findings

Resistant starch content was not influenced by ECH concentration and reaction time. Cross-linking was detected at higher reaction times (8 h) and ECH concentrations (0.30 per cent), where a decrease in viscosity peaks by more than 80 per cent was observed. Both pasting temperature and breakdown were increased, whereas a decrease in retrogradation was detected.

Practical implications

Starches can be suitable for different food applications. This is because of the ability to modify its pasting properties and the invariability of the in vitro digestibility of cassava starch as a result of using ECH (at concentrations approved by local and regional legislation) and reaction times of 4 and 8 h.

Originality/value

Information related to the modification of cassava starch using ECH is scarce or not available nowadays in literature.

Details

Nutrition & Food Science, vol. 46 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 1 December 1918

According to The Times, prompt action is likely to be taken by the Government to deal with the danger to the public health due to the consumption of contaminated, or essentially…

Abstract

According to The Times, prompt action is likely to be taken by the Government to deal with the danger to the public health due to the consumption of contaminated, or essentially impure, milk. At present the authorities are faced with a serious difficulty, owing to the absence on active service of so many officials concerned with the administration of the law relating to these matters the release of whom was strongly urged in The Times recently. It was owing to the inroads made on the staffs of the central authority and the local administrations that the Milk and Dairies (Consolidation) Act of 1915 was not put into force. As soon as a sufficient number of officials are released by demobilization, and special steps are being taken to get this done, the administrative Orders under the Act will be put into force. A similar state of things exists in regard to the Tuberculosis Order of the Board of Agriculture which, among other objects, aims at the elimination of tuberculous cows from dairy herds. With both measures in effective administration very great progress in the removal of a national danger should be almost immediately made.

Details

British Food Journal, vol. 20 no. 12
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 November 1902

In the very able and striking address which he recently delivered before the Society of Arts, Sir WILLIAM PREECE insisted that commercial success—whether of a man, of a body of…

Abstract

In the very able and striking address which he recently delivered before the Society of Arts, Sir WILLIAM PREECE insisted that commercial success—whether of a man, of a body of men, or of a nation—is referable to the working of distinct laws, the recognition and study of which may justly be said to constitute a “science of business.” In terms rendered the more severe by their dispassionate and moderate character, Sir WILLIAM referred to the lamentable ignorance displayed by the legislature, by the manufacturer, and by the general public, of what may bo regarded as the most elementary facts and methods upon which such a science must be based. He pointed to the loose and bungling character of our commercial legislation; to the lack of co‐operation and combination; to the nonexistence of a properly organised and effective consular service whereby full information could be supplied and the interests of British trade, both home and colonial, might be studied and advanced; and finally to the lethargy of British producers and manufacturers themselves, who allow foreign competitors to drive them out of even their own home markets without making an effort to discard the old‐fashioned and worn‐out methods which have given those competitors the advantage. Of late years the warning voice has been raised from time to time, but it has been as a voice crying in the wilderness. The remarkable speech delivered at the Guildhall by H.R.H. THE PRINCE OF WALES is fresh in the recollection of those who are not too drowsy or too indifferent to appreciate the vital nature and the magnitude of the evil. In 1891 Lord PLAYFAIR stated that if the Americans were right in principle in the management of some of their commercial concerns, “the whole policy of the United Kingdom was founded on a gigantic error, and must lead to our ruin as a commercial nation.” Sir WILLIAM PREECE is amply justified in attaching severe blame to the British manufacturer and producer. They have allowed “the Americans and the Germans to oust them out of their own markets, not by any superiority in the quality of their goods, but by lower prices, by superior knowledge of the demands of the markets, by the establishment of new markets, by better direct communication with foreign countries, by superior methods in business ways, by establishing regular intelligence departments, and, above all, by possessing and exercising superior commercial technical knowledge,” “and,” continued Sir.WILLIAM, “they must lay aside the commercial habits of their fathers.” With regard to food‐products, for instance, can it be truly said that any adequate steps are taken to secure any satisfactory and permanent improvement of the national food supply with respect to purity and good quality? Has anything been done, with governmental or legislative assistance, to make a systematic study of, and provide authoritative information upon such questions as the sources from which food stuffs are obtained, the adequacy or inadequacy of supplies, the true value of home‐produce and the advantages of utilising colonial products as far as possible? The answers to these questions can only be emphatically in the negative. There is no civilised country in the world in which the producer and vendor of adulterated, impoverished, and inferior articles of food can cany on their nefarious practices with more impunity, in certain respects, than in the United Kingdom, although, originally, we led the way in framing legislative enactments on these all‐important matters. At every port of entry today we might most appropriately set up the old waste‐land notice that “rubbish may be shot here.” As we offer all the necessary facilities, and as they are being taken advantage of more and more, wo might also freely advise that “rubbish should bo manufactured here” as well, What steps do British producers and manufacturers of articles of food take to move with the times, to set their houses in order, to protect themselves, and to enable the public to differentiate between the good and the bad? In the vast majority of instances the attitude they adopt is still one of unmasterly inactivity, except in the direction of unscientific and clumsy advertisement. On this they spend enormous sums without proportionate returns, and in following this course they constantly lay themselves open to condemnatory criticism by the publication of unauthorised and exaggerated statements which, in spit© of CARLYLE'S dictum “mostly fools,” are now merely received by the general public with a shrug of the shoulders. The time has come when, in order not only to develop their trade but in order to keep it, British manufacturers must give evidence of an independent and authoritative character to justify the faith that is presumably in them in recommending their goods to the public. Those who refuse to entertain new ideas and who are content to rest in a semi‐comatose condition on the achievements of the past,—relying merely on the possession of the hitherto reputable “name of the firm,”—by the operation of an inexorable law must inevitably drop out of the race.

Details

British Food Journal, vol. 4 no. 11
Type: Research Article
ISSN: 0007-070X

1 – 10 of 449