Food Science and Safety Basics

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Questions and Answers

What process involves the heat treatment that destroys pathogenic microorganisms in milk?

  • Evaporation
  • Crystallization
  • Homogenization
  • Pasteurization (correct)

Which of the following is a characteristic of fermented milk?

  • It has lactic acid intentionally added. (correct)
  • It undergoes heat stabilization of protein.
  • It contains added vegetable oil.
  • It is usually entirely made from whole milk.

Which process is aimed at evenly distributing fat globules throughout milk?

  • Pasteurization
  • Evaporation
  • Homogenization (correct)
  • Canning

Flavored milk typically has which of the following added?

<p>Flavorings (B)</p> Signup and view all the answers

What is a primary reason for standardizing fat content in milk?

<p>To comply with medical sanitation standards (A)</p> Signup and view all the answers

What does food science primarily study?

<p>The chemical, physical, and microbiological nature of foods. (D)</p> Signup and view all the answers

Which of the following best defines food security?

<p>When all people have sufficient, safe, and nutritious food. (D)</p> Signup and view all the answers

Which aspect is NOT a focus area of food science?

<p>Personal health and fitness coaching. (B)</p> Signup and view all the answers

What is one of the components of food insecurity?

<p>Inability to acquire acceptable foods. (B)</p> Signup and view all the answers

Which of the following statements is true regarding the agricultural green revolution?

<p>It was initiated to improve food security through agricultural advancements. (D)</p> Signup and view all the answers

What is the physiological role of food?

<p>Building and repairing tissues and regulating bodily processes. (A)</p> Signup and view all the answers

What is NOT a characteristic of food security?

<p>Access to food only during specific seasons. (C)</p> Signup and view all the answers

What is the significance of ambient temperature in food science?

<p>It is crucial for understanding food processing and safety. (D)</p> Signup and view all the answers

What does the 'Best By' or 'Best if used by' date indicate?

<p>The date when the food will be at its best flavor (D)</p> Signup and view all the answers

Which type of milk is primarily sourced from carabaos in the Philippines?

<p>Carabao milk (B)</p> Signup and view all the answers

What is the primary protein found in milk?

<p>Casein (D)</p> Signup and view all the answers

What does the 'Use By' or 'Expiration' date signify?

<p>The last date for peak quality (A)</p> Signup and view all the answers

What type of date is the 'Packing/Manufacturing' date?

<p>Tracking date for manufacturers (C)</p> Signup and view all the answers

What is whey in relation to milk?

<p>The liquid remaining after cheese production (A)</p> Signup and view all the answers

Which of the following is NOT a source of milk mentioned?

<p>Goat (D)</p> Signup and view all the answers

What is a common misconception about the 'Sell By' date?

<p>It indicates food safety. (A)</p> Signup and view all the answers

What is the primary function of prebiotics?

<p>They are non-digestible carbohydrates that serve as food for probiotics. (D)</p> Signup and view all the answers

Which of the following foods is a source of saponins, known for reducing cancer risk?

<p>Beans (D)</p> Signup and view all the answers

What characterizes probiotics?

<p>They are live microorganisms that can be beneficial to health. (C)</p> Signup and view all the answers

Which of the following statements is true regarding food quality?

<p>Food quality encompasses various attributes that influence acceptability. (D)</p> Signup and view all the answers

What distinguishes pectins in relation to health benefits?

<p>They protect against diabetes. (C)</p> Signup and view all the answers

Which characteristic best describes prebiotic powder?

<p>It can survive heat, cold, and acid. (C)</p> Signup and view all the answers

Which of the following describes processed foods in relation to prebiotics?

<p>Prebiotics should come from certified organic sources. (B)</p> Signup and view all the answers

What is the vulnerability of probiotics noted in the content?

<p>They can be killed over time due to fragility. (A)</p> Signup and view all the answers

What is the primary protein found in milk that plays a crucial role in cheese-making?

<p>Casein (B)</p> Signup and view all the answers

What is buttermilk primarily derived from?

<p>Liquid byproduct of butter-making (B)</p> Signup and view all the answers

Which method is suggested to prevent curdling of milk?

<p>Gradually adding Acid (C)</p> Signup and view all the answers

What is reconstituted milk?

<p>Milk made by adding water to dried or condensed milk (D)</p> Signup and view all the answers

Which of the following is a characteristic of cultured milk products?

<p>They are always fermented (B)</p> Signup and view all the answers

What occurs during the Maillard Browning Reaction in evaporated milk?

<p>Change in color due to protein interactions (D)</p> Signup and view all the answers

What is the effect of heat on milk proteins during cooking?

<p>Can create coagulation of protein (A)</p> Signup and view all the answers

Which statement about malted milk is true?

<p>It is made from a cereal-based drink mix (C)</p> Signup and view all the answers

What does the triangle test require panelists to do?

<p>Taste three samples and identify the different one (A)</p> Signup and view all the answers

Which test requires panelists to identify a sample that is identical to a given reference sample?

<p>Duo-trio Test (B)</p> Signup and view all the answers

What type of sugars are monosaccharides classified as?

<p>Simple sugars (A)</p> Signup and view all the answers

What is the formula for glucose?

<p>C6H12O6 (C)</p> Signup and view all the answers

Which of the following is a characteristic of food intoxication?

<p>Results from toxins released after ingestion (D)</p> Signup and view all the answers

Galactose is primarily derived from which of the following?

<p>Lactose (D)</p> Signup and view all the answers

What is the primary source of table sugar in the Philippines?

<p>Cane Sugar (D)</p> Signup and view all the answers

What is blood glucose commonly referred to as?

<p>Physiological sugar (A)</p> Signup and view all the answers

What distinguishes the paired comparison test from the other tests?

<p>It determines preference between two samples. (B)</p> Signup and view all the answers

Fructose is commonly found in which of the following?

<p>Fruits and honey (A)</p> Signup and view all the answers

Flashcards

Prebiotics

Non-digestible carbohydrates that serve as food for probiotics, promoting gut health.

Probiotics

Live microorganisms that, when consumed in adequate amounts, provide health benefits to the host.

Oligofructose

A type of prebiotic found in wheat, onions, banana, honey, and leeks.

Saponins

Plant compounds found in beans that may reduce cancer risk.

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Pectins

Plant compounds found in apples and grapes that may protect against diabetes.

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Natural Food

Food that has not been artificially or synthetically modified, including color additives.

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Food Quality

A term used to describe all the attributes or characteristics of a food that determine whether it is acceptable or not.

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Added to a food

Things that have been artificially added to food that would not normally be expected to be there.

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What is Food Science?

The study of the chemical, physical, and microbiological aspects of foods, focusing on how they change during processing and storage.

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What is the role of food?

The process of nourishing the body by building and repairing tissues, providing energy, and regulating bodily functions.

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What is Food Security?

A state where all people have continuous access to enough safe, nutritious food to meet their needs for an active and healthy life.

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What is Food Insecurity?

The situation where people lack consistent access to sufficient, safe, and nutritious food.

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What are the key components of Food Security?

The availability, accessibility, stability, and utilization of food resources for a population.

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What is the Green Revolution?

A set of initiatives introduced in the 20th century to increase agricultural productivity, primarily through the use of high-yielding crop varieties, improved fertilizers, and irrigation.

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What are Kosher foods?

Foods that follow Jewish dietary laws, prohibiting the consumption of pork, shellfish, and certain combinations of meat and dairy.

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What are Halal foods?

Foods that adhere to Islamic dietary guidelines, prohibiting the consumption of pork and alcohol, as well as requiring animals to be slaughtered according to specific religious methods.

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Triangle Test

A sensory test used to determine if there is a difference between three samples, where one sample is different from the other two.

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Duo-Trio Test

A sensory test used to determine if a sample is identical to a reference sample.

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Paired Comparison Test

A sensory test used to determine which of two samples has more of a specific attribute, or to determine which sample is preferred.

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Monosaccharide

A type of carbohydrate that cannot be broken down into simpler carbohydrates; it is the simplest form of sugar.

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Fructose

A type of sugar found in fruits, honey, and plant saps. It can be obtained from sucrose and inulin.

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Glucose

A type of sugar found in fruits and plant saps, as well as in animal fluids like blood. It is also used in many food products.

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Galactose

A type of sugar that does not occur naturally free, but is obtained from lactose, which is known as milk sugar. It is also a component of lactose itself.

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Cane Sugar

A type of sugar extracted from sugarcane, which is the sole source of table sugar in the Philippines.

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Manufacture of Cane Sugar

The process of manufacturing cane sugar, which involves extracting and refining sugar from sugarcane.

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Hydrolysis

The process of breaking down a complex carbohydrate into simpler forms. Specifically, it involves splitting di- or polysaccharides into monosaccharides by adding water.

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What is Pasteurization?

Milk undergoes high heat treatment to eliminate harmful bacteria without altering its taste or nutritional value.

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What is Homogenization?

A mechanical process that breaks down fat globules into smaller particles, preventing them from separating and creating a cream layer.

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What is Heat Stabilization of Protein in Milk?

This process involves controlled heating of milk to stabilize protein and prevent curdling during storage.

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What is Evaporation and Cooling of Milk?

In this process, water is removed from milk to increase its concentration, making it easier to transport and store.

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What is Crystallization of Milk?

Milk is heated to a specific temperature, allowing milk sugar to crystallize and create a thicker, creamier texture.

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Best By Date

The date that indicates when a food item will have the best flavor and quality. It is still safe to consume after this date.

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Use By Date

This date marks the final day that a product will be at its peak quality. While it's still safe to eat after this date, the quality may decline.

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Packing/Manufacturing Date

The date this product was made. It helps manufacturers track production and does not relate to food safety or quality.

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Sell By Date

The date that tells grocery stores how long to display a product for sale. The product is still safe to eat after this date.

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Milk

A substance produced by mammary glands, commonly from cows, but also from other animals such as buffalo, yaks, camels, or sheep. It is used to make butter, cheese, yogurt, and other dairy products.

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Casein

The primary protein in milk, making up about 80%. It coagulates during cheese making.

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Whey

The liquid left over after cheese is made. It's a good source of protein.

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Curdling

The process where milk separates into solid curds and watery whey, often caused by acid or enzymes.

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Reconstituted Milk

Milk that has been dried and then rehydrated with water.

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Buttermilk

The liquid left over after churning butter, often fermented for a tangy flavor.

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Cultured Milk

Milk that has been fermented by bacteria, resulting in distinct flavors and textures.

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Maillard Browning Reaction

The process of browning that occurs when milk is heated, caused by a reaction between sugars and amino acids.

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Lactalbumin

The first type of protein to coagulate in milk when heated.

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Enzymes

Substances that cause spoilage and change in flavors, including those affecting milk.

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Study Notes

Basic Foods

  • Food Science is the study of the chemical, physical, and microbiological aspects of food, including transformations and properties.
  • Food safety, nutrition, product development, public policy, and sustainability are areas of focus.
  • Food is any organic or inorganic substance that nourishes the body, provides energy, and regulates bodily processes.
  • Food is also any article used as or component of food or drink, as defined by the FDA (Food and Drug Administration).
  • Food selection depends on its availability, cultural and religious attitudes, and emotional and economic considerations. Comfort food, gourmet food, and soul food represent diverse choices.
  • Food security exists when all people have access to sufficient, safe, nutritious food.
  • Food insecurity results from the unavailability, lack of access, and inadequate utilization of food.

Food in the Philippine Setting

  • The Philippines has a range of ambient temperatures (25°C–40°C).
  • Ensuring food security is a challenge in the country.
  • Agricultural practices have been impacted by the Green Revolution.

Sustainable Development Goals (SDGs)

  • The text lists 17 SDGs, including goals related to poverty, hunger, health, education, gender equality, water, energy, work, infrastructure, reduced inequalities, sustainable cities, responsible consumption, climate action, and partnerships.

Food Classification

  • Food can be classified by source (plants, animals).
  • It can also be classified according to level of manufacturing, or by location (comfort food, etc.).
  • Foods can also be classified by the concept of survival and health benefits.

Food Quality

  • Food quality is a composite of multiple criteria, including nutritional aspects, digestibility, and palatability.
  • Appearance, odor, taste, texture, and composite flavor contribute to the food's overall perception.

Sugar and Sugar Products

  • Sugar is a type of crystalline organic compound.
  • Monosaccharides are the simplest forms of sugars.
  • Polysaccharides are carbohydrates that are made up of multiple sugar molecules.
  • Various forms of sugar are available (e.g., granulated, lump, superfine).
  • Sugar has hygroscopic properties.
  • Various sugars are sourced from sugar cane or sugar beets.
  • Refined granulated sugar and its crystalline forms are common.

Manufacture of Sugar

  • Sugar is manufactured using a process that involves extraction, purification, evaporation, and crystallization
  • Different market forms such as crystalline, lump, and powdered exist.

Raw Brown Sugar/Sugar in Raw

  • It has a darker color and stickier consistency than other sugars.
  • There is some molasses or other natural sugar retained.

Palm Sugar and Coconut Palm Sugar

  • These are made from palm sap/tree and coconut flowers, respectively.
  • Some forms are granules, blocks or liquid, and varying degrees of color.

Other Forms of Sugar

  • Other forms include sorghum, maple, honey and other processed sugar from corn.

Functional Foods

  • Provide additional health benefits.

  • May help reduce disease risks and improve health.

Prebiotics, Probiotics, and Synbiotics

  • substances of special form fiber or carbohydrates
  • live active microorganisms intended
  • products that combine prebiotics and probiotics
  • exert beneficial effects on the digestive system.

Nutrigenetics and Nutrigenomics

  • study how our genes affect how our body reacts to food
  • study the relationship between genes and diet

Food Security

  • Exists when all people have sustained physical and economic access to adequate, safe, and nutritious food
  • Addresses dietary needs and food preferences for an active and healthy lifestyle.

Nutritional Quality

  • Food's quality is evaluated for its contents, including proteins, carbohydrates, water, fats, vitamins, and minerals.

Basic Function of Nutrients

  • protein, carbohydrate, and fat-rich foods, provide essential energy, nutrients, and other needed elements for building and regulating function.

Digestibility

  • Evaluates food completeness of digestion and absorption, and after-effect feelings.

Palatability

  • Used to evaluate food eating quality, appearance, odor, taste, texture, and flavor.

Foodborne Illness:

  • Caused by toxins from microorganisms or by the presence of toxins in the food itself.
  • Categories of food contaminations are differentiated by the source of pathogen.

Organic Foods

  • Produced using methods that avoid synthetic pesticides, herbicides, fertilizers, or artificial preservatives.

Natural Foods

  • Contains synthetic or artificial materials.

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